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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: Ahmad on November 09, 2007, 07:40:11 am

Title: Exam 1 Thoughts
Post by: Ahmad on November 09, 2007, 07:40:11 am
The exam is in 20 minutes! Good luck guys!


Post exam discussion here.
Title: Exam 1 Thoughts
Post by: Odette on November 09, 2007, 07:47:47 am
Good luck methods students :) i'm sure you'll do fine ^_^
Title: Exam 1 Thoughts
Post by: enwiabe on November 09, 2007, 08:30:29 am
It's fairly schadenfreude of me, but I'm hoping it's impossible for them. :P
Title: Exam 1 Thoughts
Post by: Ahmad on November 09, 2007, 08:33:18 am
Why?

..and many must be dying right now haha.
Title: Exam 1 Thoughts
Post by: reg on November 09, 2007, 09:43:14 am
FUCKERS PUT RELATED RATES OF CHANGE ON THE EXAM *($@&$*@($@()

I rly rly rly hope I get >50% :(.

Although, exam wasn't THAT hard, comparatively.
Title: Exam 1 Thoughts
Post by: zamatt on November 09, 2007, 09:43:27 am
Well..... not bad.. bit harder than last year which is good!
I had no idea about that probability question (A U B), and the next one with mutually exclusive but took a guess at 0 and i think i was right!
Title: Exam 1 Thoughts
Post by: squance on November 09, 2007, 09:48:04 am
It was pretty good.....but....I could oonly do 10/12 questions

Damn probability!!!

That one where it was A union B or something...at the end, I realised you had to use Karnaugh maps or something... :cry:

And then there was this question about fine weather and a plane trip arriving on time.... can something explain the question to me please...would iti be possible to solve the question by tree diagram or something?
Title: Exam 1 Thoughts
Post by: reg on November 09, 2007, 09:49:37 am
I think that question was use of Markov chains, at least the way I did it.

on the bright side, no sketching graphs lolololol ftw
Title: Exam 1 Thoughts
Post by: dashkenny on November 09, 2007, 09:52:09 am
yes lucky i practised rate of change like 10 times last night :)

still screwed the exam. look at 50-65% :(

never seen last question before :|
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 09:53:03 am
Quote from: "squance"
It was pretty good.....but....I could oonly do 10/12 questions

Damn probability!!!

That one where it was A union B or something...at the end, I realised you had to use Karnaugh maps or something... :cry:

And then there was this question about fine weather and a plane trip arriving on time.... can something explain the question to me please...would iti be possible to solve the question by tree diagram or something?


haha that q was awsome, i drew some mad vendiagrams with my highlighters lol

rate of change q was good, i got 2/3 cm/s

yeah i used markov chain for the first part of the prob Q got like .68

last Q was FKN GAY GAY GAY ( i made a triangle with the eqn and the line going thru the origin as a normal then attempted to find the hypotunse... completely wrong, aparently you had to sub in P into the eqn)

and the binomial Q where you had to evaluate 4 C 3 <-- fuked it up  :(

it was harder than last years thats for sure, but it wasnt really that hard, it was reasonable, finished with about 5 mins to spare. i would have mainly lost marks on arithmetic error and silly mistakes

thank the lord there was no sketching trig graphs!!!!! would have definaltly run out of time if there was

bring on exam 2!
Title: Exam 1 Thoughts
Post by: reg on November 09, 2007, 09:54:37 am
Quote
and the binomial Q where you had to evaluate 4 C 2 <-- fuked it up
???????

I'm fairly sure the question stated more than 2 customers buying coffee, unless you did 1 -?
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 09:56:19 am
oh no wait, i mean 4 C 3... actualy i dno i think i screwed it up lol
Title: Exam 1 Thoughts
Post by: zamatt on November 09, 2007, 09:58:34 am
What did ppl get for the last part of the plane question...i came out with 8/17 which came from (.8x.4)/.68
Title: Exam 1 Thoughts
Post by: bonghead on November 09, 2007, 10:00:53 am
hey did anyone write all the solutions to the methods exam i want to see what kind of score im looking at
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 10:08:32 am
Exam wasn't that hard. You guys just panicked too much.
Title: Exam 1 Thoughts
Post by: Daniel15 on November 09, 2007, 10:17:32 am
That was a lot easier than I thought it would be! Anyone else think it was easier than last year's? It certainly felt that way for me :)

And OMG, no graph sketching questions! The was the one thing I was worried about... I suck at drawing graphs :P

Quote from: "bonghead"
hey did anyone write all the solutions to the methods exam i want to see what kind of score im looking at

See http://freestudynotes.com/VCEforum/viewtopic.php?t=387 :)
Title: Exam 1 Thoughts
Post by: Matt89 on November 09, 2007, 10:18:35 am
I thought it was OK. Harder than last years and much harder than the 2006 sample exam IMO. I hated that binomial probability question. Thats always been a calculator question for me
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 10:20:29 am
exam was easy for me...just that i read Pr(x>2) as pr(x>=2) for one question...so  i would lose 1 there...
Title: Exam 1 Thoughts
Post by: JohnS on November 09, 2007, 10:21:47 am
I got everything except for the conditional prob plane question. I wrote 10/17 instead of 8/17. Do you think ill get one mark?
Title: Exam 1 Thoughts
Post by: Michael on November 09, 2007, 10:24:53 am
I thought it was VERY hard. As if no graphs? What was VCAA thinking? Also, that probability question was just terrible.
Title: Exam 1 Thoughts
Post by: Juztine on November 09, 2007, 10:26:20 am
that was the biggest load of @#$% i've ever done in my life
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 09, 2007, 10:26:26 am
the probability questions were hard. LOL lost about 3 marks on them  :?

how did people go about drawing the derivative graph for question 3? Open-circles for all end-points?
Title: Exam 1 Thoughts
Post by: Michael on November 09, 2007, 10:28:59 am
Does anyone have the mark allocations by any chance for each question?
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 10:29:25 am
@ asa hoshi: lol u were talkin about them yesterday ....so i remembered that
Title: Exam 1 Thoughts
Post by: hifer on November 09, 2007, 10:29:34 am
Quote from: "asa.hoshi"
the probability questions were hard. LOL lost about 3 marks on them  :?

how did people go about drawing the derivative graph for question 3? Open-circles for all end-points?


Oya, for the derivative graph, did everyone draw a straight line with a -ve gradient, cutting x=-3 for the 1st section of the graph?
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 10:30:51 am
yea i did
Title: Exam 1 Thoughts
Post by: hifer on November 09, 2007, 10:34:08 am
Quote from: "bilgia"
yea i did


ok gd.. but how do u actually tell whether it's a quadratic or say a cubic? their curvy part looks pretty much the same.. but the derivative graph would look differently
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 10:36:12 am
i immediately interpreted it as a quadratic...LOL how the hell could u think that was a cubic? there were no pts of inflexion or  anything else..
derivative of a quadratic eqn is always a straight line...
Title: Exam 1 Thoughts
Post by: hifer on November 09, 2007, 10:38:11 am
Quote from: "bilgia"
i immediately interpreted it as a quadratic...LOL how the hell could u think that was a cubic? there were no pts of inflexion or  anything else..
derivative of a quadratic eqn is always a straight line...


O oops my bad i mean a quartic.. >< say (x+3)^4, but i guess it would look rather different -.-
Title: Exam 1 Thoughts
Post by: Defiler on November 09, 2007, 10:39:48 am
Well, hopefully I did enough to get over 50%.
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 10:44:16 am
I really did not like the probability questions. I thought they were a bit out of place.

What do you guys think the 'minimum' that will be needed in exam 1 to get:

a) 50
b)45
c) 40
d) 35
e) 30
Title: Exam 1 Thoughts
Post by: Daniel15 on November 09, 2007, 10:47:08 am
Quote from: "asa.hoshi"
the probability questions were hard. LOL lost about 3 marks on them  :?

how did people go about drawing the derivative graph for question 3? Open-circles for all end-points?


Yep, I did open-circles for all end-points, because the derivative is not defined at end-points.

Quote
What do you guys think the 'minimum' that will be needed in exam 1 to get:

a) 50
b)45
c) 40
d) 35
e) 30

I'm wondering the same thing...
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 09, 2007, 10:48:10 am
Quote from: "kido_1"

What do you guys think the 'minimum' that will be needed in exam 1 to get:

a) 50
b)45
c) 40
d) 35
e) 30

decent scores!!!!!!

but i reckon an A+ for exam 1 will probably be around 36-37 range.
Title: Exam 1 Thoughts
Post by: Michael on November 09, 2007, 10:48:11 am
I'm thinking 50 you could probably lose 1-2 marks MAX.
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 10:50:20 am
I think A+  will be in the 34-36 range. This is because heaps of people I know did not finish the paper or attempt the last question.
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 10:51:39 am
yeah A+ will be 34-36 defiantly, so many people struggled on it.
Title: Exam 1 Thoughts
Post by: Matt89 on November 09, 2007, 10:53:10 am
Quote from: "kido_1"
I think A+  will be in the 34-36 range. This is because heaps of people I know did not finish the paper or attempt the last question.


Last years was around 37, and i think this years exam was harder, so i'm predicting a cut off of around 34
Title: Exam 1 Thoughts
Post by: Daniel15 on November 09, 2007, 10:54:36 am
Quote from: "maxleng"
yeah A+ will be 34-36 defiantly, so many people struggled on it.


Wooo, this is sounding really good, maybe I'll end up getting a 40 after all :D
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 09, 2007, 10:57:46 am
wow... an A+ in the 34-36 range. isn't it a bit too low...

you know for the last question. there was a VERY SIMILAR ONE on the 2007 kilbaha methods exam 1. lucky i did it  the nite before:P yay 4 marks.
Title: Exam 1 Thoughts
Post by: ezflow on November 09, 2007, 11:00:29 am
I thought that an A+ is defined as between 42 and 50, and it just depends what percentage constitutes as an A+. Bearing that in mind, I think that an A+ will be around 88% - 100%. But, who knows? It depends on how hard Part 2 is going to be.

All I know is, I mucked up some of the easier questions because I was being stupid, and I got the harder ones like the last one correct. So very, very annoying!
Title: Exam 1 Thoughts
Post by: Defiler on November 09, 2007, 11:01:22 am
Quote from: "asa.hoshi"
you know for the last question. there was a VERY SIMILAR ONE on the 2007 kilbaha methods exam 1. lucky i did it  the nite before:P yay 4 marks.


Heh, naturally I only half-finished that exam last night and naturally I didn't see that question. GG
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 11:03:54 am
Yeh I hate it when you get the hard questions right and the easy questions wrong.!!!
Title: Exam 1 Thoughts
Post by: Daniel15 on November 09, 2007, 11:05:24 am
Quote from: "asa.hoshi"

you know for the last question. there was a VERY SIMILAR ONE on the 2007 kilbaha methods exam 1. lucky i did it  the nite before:P yay 4 marks.

Grrrr... The practice exam you were telling me about... I was looking for but couldn't find it. It's still sitting in my room somewhere. :P
I still think I did it properly, though =]
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 09, 2007, 11:07:32 am
Quote from: "Daniel15"
Quote from: "asa.hoshi"

you know for the last question. there was a VERY SIMILAR ONE on the 2007 kilbaha methods exam 1. lucky i did it  the nite before:P yay 4 marks.

Grrrr... The practice exam you were telling me about... I was looking for but couldn't find it. It's still sitting in my room somewhere. :P
I still think I did it properly, though =]
lol... you should of told me to send it too you! aw well. im sure u did much better than me.
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 11:10:20 am
FUN WHEEEE!

Again, again!
Title: Exam 1 Thoughts
Post by: Timtasticle on November 09, 2007, 11:20:31 am
What about the average score? Where do people think it will be?
Title: Exam 1 Thoughts
Post by: Matt89 on November 09, 2007, 11:24:17 am
Quote from: "Timtasticle"
What about the average score? Where do people think it will be?


I'm predicting around 20/40
Title: Exam 1 Thoughts
Post by: Daniel15 on November 09, 2007, 11:28:17 am
Quote from: "asa.hoshi"
Quote from: "Daniel15"
Quote from: "asa.hoshi"

you know for the last question. there was a VERY SIMILAR ONE on the 2007 kilbaha methods exam 1. lucky i did it  the nite before:P yay 4 marks.

Grrrr... The practice exam you were telling me about... I was looking for but couldn't find it. It's still sitting in my room somewhere. :P
I still think I did it properly, though =]
lol... you should of told me to send it too you! aw well. im sure u did much better than me.

That's alright, I wouldn't have done it anyways :P
To be honest, I didn't do that many practice exams...

I'm sure you didn't do too badly...
And lolz, our MSN conversation last night:
Quote
[22:24:31] Daniel | Study study study... | Haikus are so dumb. Some don't even have a point. Hippopotamus. : I'm trying to get a study score of 40 in Methods but I'm not sure how possible that it. It seems like there's so many people that are better than me :(
[22:27:07] -∞ [j{a}k.x{o}n ] ∞- VSL JAP & SPC CLASS '07 : same
[22:27:10] -∞ [j{a}k.x{o}n ] ∞- VSL JAP & SPC CLASS '07 : i hate drawing cos.sin.tan graphs
[22:27:13] -∞ [j{a}k.x{o}n ] ∞- VSL JAP & SPC CLASS '07 : :@
[22:27:13] -∞ [j{a}k.x{o}n ] ∞- VSL JAP & SPC CLASS '07 : aha
[22:27:17] -∞ [j{a}k.x{o}n ] ∞- VSL JAP & SPC CLASS '07 : i hope there aint a lot of graphs
[22:28:18] Daniel | Study study study... | Haikus are so dumb. Some don't even have a point. Hippopotamus. : Yeah, I'm hoping the same thing.
[22:28:26] Daniel | Study study study... | Haikus are so dumb. Some don't even have a point. Hippopotamus. : Well let's both hope for the best =D

At least we got lucky in the fact that there were no trig graphs :D
Title: Exam 1 Thoughts
Post by: reg on November 09, 2007, 11:54:59 am
This year
exam 1 /40
exam 2 /80

?!?? Exam one only worth 33%? Or is it calculated differently (average of both %'s?)
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 11:59:36 am
SACs: 34%
Exam 1: 22%
Exam 2: 44%
Title: Exam 1 Thoughts
Post by: squance on November 09, 2007, 12:22:00 pm
Quote from: "Toothpick"
SACs: 34%
Exam 1: 22%
Exam 2: 44%


Really??!!!
I thought it was 33%/33%/33%???
Title: Exam 1 Thoughts
Post by: positive_viv on November 09, 2007, 12:25:11 pm
Gosh, reading all of this and people discussing their answers, I feel so stupid. Seriously. When I say that Methods is not my forte, I mean that I should have done Further this year and maybe I at least would have gotten more than hmmm...a 6 for my study score. The stupid thing was that...

...Well, I only took Methods because you needed a 25 SS for it to do a Bachelor of Arts / Sciences at the University of Melbourne. I only found out halfway through this year about the Melbourne Model. What a stupid idiot I was.

Haha, I didn't even finish the exam. And the questions that I did finish...well, I realise that I didn't even answer them correctly. So there goes that  

You guys are amazing. How do guys grasp methods so well? Knowing how everything works and fits...that's awesome. After high school, I'm going to hire myself a tutor, regardless of whether I'll ever do math ever again. I think it's a fascinating subject - or at least a great skill to be able to apply formulas and make them work for you. It's just a skill that I lack.

Will definitely be my bottom subject.

Good luck to everyone else
Title: Exam 1 Thoughts
Post by: jeremykleeman on November 09, 2007, 12:30:31 pm
Good work, nice to see your being positive. My maths teacher didn't like maths at highschool, became a psychologist (which you may be?) and then found it boring and came back to teach maths, he also finds it fascinating and therefore he is a great teacher. Who knows, you may teach maths later on?

Nice to see your staying positive, do try for the Exam 2, who knows you may get lucky!
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 12:31:07 pm
Quote from: "squance"
Quote from: "Toothpick"
SACs: 34%
Exam 1: 22%
Exam 2: 44%


Really??!!!
I thought it was 33%/33%/33%???


Nah, it's gotta add up to 100%. Lol.

Exam 2's worth double.
Title: Exam 1 Thoughts
Post by: squance on November 09, 2007, 12:33:07 pm
Quote from: "Toothpick"
Quote from: "squance"
Quote from: "Toothpick"
SACs: 34%
Exam 1: 22%
Exam 2: 44%


Really??!!!
I thought it was 33%/33%/33%???


Nah, it's gotta add up to 100%. Lol.

Exam 2's worth double.


exam 2's worth 44%??!!! Damn.................But's its way harder than the first one......
I can't believe I couldn;t do the probability questions.!!!! and I did stupid mistakes for simple calculations... :x
Title: Exam 1 Thoughts
Post by: hifer on November 09, 2007, 12:33:35 pm
Quote from: "positive_viv"
Gosh, reading all of this and people discussing their answers, I feel so stupid. Seriously. When I say that Methods is not my forte, I mean that I should have done Further this year and maybe I at least would have gotten more than hmmm...a 6 for my study score. The stupid thing was that...

...Well, I only took Methods because you needed a 25 SS for it to do a Bachelor of Arts / Sciences at the University of Melbourne. I only found out halfway through this year about the Melbourne Model. What a stupid idiot I was.

Haha, I didn't even finish the exam. And the questions that I did finish...well, I realise that I didn't even answer them correctly. So there goes that  

You guys are amazing. How do guys grasp methods so well? Knowing how everything works and fits...that's awesome. After high school, I'm going to hire myself a tutor, regardless of whether I'll ever do math ever again. I think it's a fascinating subject - or at least a great skill to be able to apply forumulas and make them work for you. It's just a skill that I lack.

Will definitely be my bottom subject.

Good luck to everyone else


Wow, i really admire ur positive attitude! don't worry math is not a hard subject to grasp, it just comes with practise. I'm sure if u keep up at it, u'll be awesome!

Don't ever give up! :D
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 12:35:47 pm
Quote from: "hifer"
Wow, i really admire ur positive attitude! don't worry math is not a hard subject to grasp, it just comes with practise. I'm sure if u keep up at it, u'll be awesome!

Don't ever give up! :D


Well it's positive_viv after all!
Title: Exam 1 Thoughts
Post by: positive_viv on November 09, 2007, 12:39:12 pm
Quote from: "Toothpick"
Quote from: "hifer"
Wow, i really admire ur positive attitude! don't worry math is not a hard subject to grasp, it just comes with practise. I'm sure if u keep up at it, u'll be awesome!

Don't ever give up! :D


Well it's positive_viv after all!



Haha, well actually, it was either between negative and positive because those were the only words that I could of think of to rhyme with 'Viv.' I just figured positive sounded better than negative :D

But anyway, I think I deviated a little from the topic. Hrmmm...

Just to get it back to topic: I know the majority of people at my school found it hard too. Hope you guys did well  :D
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 12:47:39 pm
probability questions were perfect, loved everyone of them. They weren't hard
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 12:49:24 pm
Er, well, exams are fun! Hahaha. I'm sure many would disagree! (...and I'm sure by next year I'll be sick of them too Haha)

mmmmmm Methods.

Quote from: "Khangfu"
probability questions were perfect, loved everyone of them. They weren't hard


Agreed. I quite liked them. .. ..
Title: Exam 1 Thoughts
Post by: tilda38 on November 09, 2007, 01:21:56 pm
yeah, the probability questions are were nice looking back at them now, however were rather painful when i was doing them as i had completely forgotten the karnaugh map so made up a whole heap of stuff for that question and for the rest... i'm still kicking myself over stupid mistakes. very glad its over though!!! exam 2, here we come...
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 01:24:01 pm
I am superglad its over. Now my calculator can come into good use.
(I think i might be able to get 39/40 for Exam 1). Hopefully a really nice score in exam 2(which i tend to do better in) can fix up my mistakes.....
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 01:27:27 pm
Exam 2 mends the disappointment. :)
Title: Exam 1 Thoughts
Post by: tilda38 on November 09, 2007, 01:36:24 pm
nice one kido! pftt, your 1 mark mistake doesn't need too much fixing!! yep, sure is good knowing that if i do good in exam 2 things aren't too bad. great thing is that in exam 2 there's more room for consequential marking!
Title: Exam 1 Thoughts
Post by: tankia on November 09, 2007, 01:40:59 pm
Quote from: "zamatt"
What did ppl get for the last part of the plane question...i came out with 8/17 which came from (.8x.4)/.68



A plane? There was a plane?
Title: Exam 1 Thoughts
Post by: tilda38 on November 09, 2007, 01:44:03 pm
lol, that was the tree diagram question about flights to melbourne from an island in good or bad weather.
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 01:47:39 pm
Yes, there was  a plane question.(Markov)
Title: Exam 1 Thoughts
Post by: Toothpaste on November 09, 2007, 01:48:20 pm
That plane one was nice. :D

i know people who did it the other way around... 'fine given on time'(or something) instead of whatever it was.
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 02:22:19 pm
yeah lots of people would have got confused on that Q and not use markov for part a) becuase of the 'given'... when i came out i was like "so u used markov for part a right" everyone else "nooo it said given" lolz
Title: Exam 1 Thoughts
Post by: costargh on November 09, 2007, 03:34:12 pm
=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!
Title: Exam 1 Thoughts
Post by: Odette on November 09, 2007, 03:37:45 pm
Quote from: "costargh"
=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!


Aww, good luck on exam 2 :)
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 09, 2007, 03:38:55 pm
Quote from: "costargh"
=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!
in that case u wont get consequential marks. u'll get a method mark.

 like u know for the coffee question where it was worth 2 marks. 1 mark is allocated towards your answer and 1 mark is gone to how u approached the question (method).
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 09, 2007, 03:42:09 pm
how do you do question 8b.? haha
Title: Exam 1 Thoughts
Post by: Mystery on November 09, 2007, 04:00:52 pm
most if not all of my exam was wrong(highly doubt all), but I knew how to approach everything.
Title: Exam 1 Thoughts
Post by: Matt89 on November 09, 2007, 04:15:38 pm
Quote from: "asa.hoshi"
how do you do question 8b.? haha


I'm 99.9% sure the question was something like:
3f(x-1)+2      (and They told you that f(x) = sin(2π/3)    (the 'π' is supposed to be pi)

Because it was a sin function, i said that its a maximum when f(x-1) = 1

To simplify things, i let a = x-1
So...
f(a) = 1
sin (2πa/3) = 1  
2πa/3 = π/2
2πa = 3π/2
a = 3/4

Therefore, a = x - 1
             3/4 = x - 1
             7/4 = x
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 04:31:15 pm
Quote from: "Matt89"
Quote from: "asa.hoshi"
how do you do question 8b.? haha


I'm 99.9% sure the question was something like:
3f(x-1)+2      (and They told you that f(x) = sin(2π/3)    (the 'π' is supposed to be pi)

Because it was a sin function, i said that its a maximum when f(x-1) = 1

To simplify things, i let a = x-1
So...
f(a) = 1
sin (2πa/3) = 1  
2πa/3 = π/2
2πa = 3π/2
a = 3/4

Therefore, a = x - 1
             3/4 = x - 1
             7/4 = x


hmm what i did was g(x) = f(x-1)[/i]+2

put in the values, derived the function and made it = 0 since it was a maximum and tried to solve from there..
Title: Exam 1 Thoughts
Post by: ezflow on November 09, 2007, 04:36:36 pm
Does anyone actually have a copy of the full exam that they could upload?
Title: Exam 1 Thoughts
Post by: Fitness on November 09, 2007, 04:49:31 pm
I am really disapointe that there were no trig graph sketching! I hav became pro at them. :x
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 04:55:19 pm
Quote from: "costargh"
=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!


You never know, nice examiners may give you 2/2 if they understand where you are coming from..(One of my friends did a whole page, with a table and perfect working but put 3/16 instead of 5/16)
Title: Exam 1 Thoughts
Post by: Ahmad on November 09, 2007, 05:24:27 pm
Well, I think many examiners are nice.

I'm sure I put a double bond where a single bond (or no bond) was required for chemistry. It was a tiny error, but an error nonetheless, and I got full marks for it.

Oh, and I also labelled the state of H2SO4 as (l) instead of (aq) as was in the examiners report and got the mark!
Title: Exam 1 Thoughts
Post by: Eriny on November 09, 2007, 05:32:42 pm
Apart from the probability questions, I think overall it was a really good exam. The probability really came out of left wing. The rest of it was okay though. I know I stuffed up quite a few things in minor ways probably (I was VERY stretched for time, I barely finished), but I should be able to get most of the marks available for the questions where I actually knew what I was doing, lol.
Title: Exam 1 Thoughts
Post by: melanie.dee on November 09, 2007, 05:46:19 pm
ahah omg i think i got about 5/40. seriously. the only question i got right was the rates question, and maybe a few other random marks. talk aboout NOTHING like any of the prac exams iv done!
Title: Exam 1 Thoughts
Post by: Odette on November 09, 2007, 06:03:50 pm
Quote from: "melanie.dee"
ahah omg i think i got about 5/40. seriously. the only question i got right was the rates question, and maybe a few other random marks. talk aboout NOTHING like any of the prac exams iv done!


Aww i'm sure you did alright, good luck with exam 2 ^_^
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 06:31:52 pm
itute answers are up
http://www.itute.com/mathline/2007_vcaa_mm_exam1_sol.pdf
Title: Exam 1 Thoughts
Post by: Eriny on November 09, 2007, 06:54:02 pm
Can someone tell me how many marks each question was worth so I can figure out how many marks I lost?
Title: Exam 1 Thoughts
Post by: melanie.dee on November 09, 2007, 07:07:48 pm
i think i got about 12 - 15 out of 40 ahahhahahah. lordy. thats funny. can i still get a 25 somehow haha?
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 07:13:12 pm
im looking at 32-34/40 depending on whether examiners except some answers and how much i get for the last Question.
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 07:14:21 pm
fack lost 1-2 mark on that bloody sinx maximum question. Chances of 50 = 0 T.T
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 07:33:50 pm
If that is the only place you lost marks, then you can still get a 50.
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 07:35:37 pm
Really? :D What do i need for exam 2?

EDIt: The exam was really easy for me, so im really worried about how the rest of the state went
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 07:41:19 pm
Well if you get 38/40 or 39/40 and you get 78-80/80 (depending on how hard Exam 2 is) you could still get a 50 if you SACs are good.

Remember, this years Exam 1 was much harder than last years.
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 07:42:17 pm
that word "could" is a rela pain in the ass. Dammit i wish ym school had let me do a 6 th subject. Bastards!
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 07:46:12 pm
lol

Calm down, it will be all right. No one that I have talked to so far is going to get a 40. Most smart ppl make a mistake here or there. I know for myself I mucked up that (A' B) question and so lost one mark. (39/40)

Silly mistakes= Gay way to lose marks.
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 07:51:50 pm
prolly full marks on exam 2 for 50 i reckn..methods is heaps competitive...
i think im looking at 39/40 hopefully.....
Title: Exam 1 Thoughts
Post by: un on November 09, 2007, 07:54:39 pm
I reckon you can still get a 50 with a 39/40 in Exam 1, if you kill exam 2.
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 07:56:34 pm
thansk for the replies. O well best of luck for your exams too
Title: Exam 1 Thoughts
Post by: JL_91 on November 09, 2007, 07:59:51 pm
hey i'm a newbie here =] anyway, i thought the exam wasn't that hard, but i made one dumb mistake, in 8b) - didn't cancel out the pi properly  :x  i agree, i hate silly mistakes so much! one question...would it be considered 'wrong' if i wrote a '+c' at the end of my antiderivative in Q7?
Title: Exam 1 Thoughts
Post by: Collin Li on November 09, 2007, 08:02:07 pm
Quote from: "JL_91"
hey i'm a newbie here =] anyway, i thought the exam wasn't that hard, but i made one dumb mistake, in 8b) - didn't cancel out the pi properly  :x  i agree, i hate silly mistakes so much! one question...would it be considered 'wrong' if i wrote a '+c' at the end of my antiderivative in Q7?


What was the question? Did it say find "an antiderivative" or find "the antiderivative," or was it *gasp* a definite integral (in which case a +C definitely would be wrong!).
Title: Exam 1 Thoughts
Post by: Khangfu on November 09, 2007, 08:02:19 pm
Quote from: "JL_91"
hey i'm a newbie here =] anyway, i thought the exam wasn't that hard, but i made one dumb mistake, in 8b) - didn't cancel out the pi properly  :x  i agree, i hate silly mistakes so much! one question...would it be considered 'wrong' if i wrote a '+c' at the end of my antiderivative in Q7?

don't think so cause that would still be "an" anti derivative

Edit: wait actually thats a family of derivatives.
Title: Exam 1 Thoughts
Post by: Collin Li on November 09, 2007, 08:03:21 pm
With "an antiderivative," I believe they want you to explicitly choose a value of C. For the purposes of staying awake, I prefer to make my C = 1. People tend to choose C = 0, but it gets you in the inconsistent habit of forgetting the +C altogether sometimes, I reckon.
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 08:03:22 pm
i cant remember whether it was needed, but i put the +C...
i dont think it asked for  "an antiderivative" but just a general one...
Title: Exam 1 Thoughts
Post by: hifer on November 09, 2007, 08:06:02 pm
They asked for "AN antiderivative" I'm sure coz i looked at it carefully and even underlined the AN to remind myself not to put the +c haha..
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 08:06:27 pm
o shit that sets me back 1 mark...dayum!
Title: Exam 1 Thoughts
Post by: JL_91 on November 09, 2007, 08:11:24 pm
maybe they'll be nice and give us the mark anyway  :) coz remember, they were nice about ppl forgetting to put 'dx' on the end of integrals etc. last year
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 08:13:21 pm
my teacher was saying they can take half marks off, but if theyre left with a non integer score, like 39.5 they would make it 39. so now i should hope that by that logic, my minor error with reading pr(x>2) as pr (x>=2) should get 1.5/2 and my other error with plus C warrants another half mark...so 1.5/2...leaving me still with 39/40 hehe LOL
Title: Exam 1 Thoughts
Post by: JL_91 on November 09, 2007, 08:17:49 pm
haha hopefully. if they give me that mark, i have a 39/40..if not then a 38. what range of study scores is possible with that mark, if I do well enough on exam 2? im ranked either #1 or #2 for SACs
Title: Exam 1 Thoughts
Post by: bilgia on November 09, 2007, 08:29:20 pm
im thinking mid 40s
Title: Exam 1 Thoughts
Post by: JL_91 on November 09, 2007, 08:33:03 pm
wow i would be so happy with that lol, i am only hoping for 35+. my school's SACs scale up really well. im doing CAS btw...not sure if that makes a difference. anyone else here doing CAS?
Title: Exam 1 Thoughts
Post by: hakeemthedream on November 09, 2007, 08:50:50 pm
i am angrier than all of you combined

i needed to do well here after effing up spec (35/40) with classic stupid mistakes

thought i came out of this one with a 40

instead i REALISE I ACCIDENTLY put

UPSIDE DOWN U instead of U in my domain

so it was intersection not union, is that the worst mistake ever? FUCKING TYPICAL, it hurts so bad
Title: Exam 1 Thoughts
Post by: tini on November 09, 2007, 09:07:04 pm
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?
Title: Exam 1 Thoughts
Post by: Daniel15 on November 09, 2007, 09:16:34 pm
Quote from: "tini"
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?


I hope so... Sounds like similar results to what I'd be getting (I think my SAC ranking is lower than that, though) and I'm aiming for a 40 as well :)
Title: Exam 1 Thoughts
Post by: tini on November 09, 2007, 09:23:51 pm
thanks daniel!! :)
Title: Exam 1 Thoughts
Post by: kido_1 on November 09, 2007, 09:51:06 pm
Quote from: "tini"
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?


Yes definitely. If you get 36/40 and 72/80 (on a difficult Exam 2) then you could even get a 45!!!
Title: Exam 1 Thoughts
Post by: enwiabe on November 09, 2007, 10:37:54 pm
Quote from: "kido_1"
Quote from: "tini"
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?


Yes definitely. If you get 36/40 and 72/80 (on a difficult Exam 2) then you could even get a 45!!!


You don't know what you're talking about :P

Last year:

Exam 1: 40/40
Exam 2: 77/80
SACs: 97%

SS: 44.
Title: Exam 1 Thoughts
Post by: maxleng on November 09, 2007, 10:43:32 pm
yeah and last year 16 % of people got over 90% this year 16% of people will probably get over 80% (exam 1 im talking about)

Quote from: "tini"
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?


im in a similar situation, except the exam 1 score is more towards the lower side, hopefuly can go well on exam 2, i think a 40 is well within the range of marks...hopefully anyway, if i do get a 40 i will be soooooooo happy
Title: Exam 1 Thoughts
Post by: Ahmad on November 09, 2007, 10:57:29 pm
Quote from: "kido_1"
Quote from: "tini"
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?


Yes definitely. If you get 36/40 and 72/80 (on a difficult Exam 2) then you could even get a 45!!!


Doubt it. Even spesh isn't that lenient AFAIK.
Title: Exam 1 Thoughts
Post by: ninwa on November 09, 2007, 11:01:32 pm
Quote from: "kido_1"
Quote from: "tini"
I'm about an A for my SACS and rank about 3rd or 4th

I'm expecting 32-36/40 for exam 1

and aiming for about 72/80 on exam 2

is it possible for me to get a study score of around 40?


Yes definitely. If you get 36/40 and 72/80 (on a difficult Exam 2) then you could even get a 45!!!


I got the same SS as enwiabe (44)
SACs were A average. (don't know my ranking but I would have also been around 3rd in my class)
Exam 1 40/40
Exam 2 78 or 79/80 (can't remember)

I don't think it'll be that much different this year despite the exams being harder.
Title: Exam 1 Thoughts
Post by: Matt89 on November 09, 2007, 11:02:08 pm
Quote from: "enwiabe"
You don't know what you're talking about :P

Last year:

Exam 1: 40/40
Exam 2: 77/80
SACs: 97%

SS: 44.


Damn....... That means a fair amount of people got over 97% for the subject

EDIT:

But that 44 gets scaled to 47.4, so that isnt too bad
Title: Exam 1 Thoughts
Post by: Jasper on November 10, 2007, 02:04:51 pm
Made a stupid mistake on the second prob question, wrote .4/.68 instead of .32/.68...damn, I hate stupid mistakes.

39/40...Really hope I do better on the second exam (or as good, 78/80 would be awesome :P )
Title: Exam 1 Thoughts
Post by: bilgia on November 10, 2007, 02:28:46 pm
LOL hasnt anyone dropped 0 marks??
Title: Exam 1 Thoughts
Post by: Matt89 on November 10, 2007, 02:44:39 pm
Quote from: "bilgia"
LOL hasnt anyone dropped 0 marks??


I hope not hehe  :lol:
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 10, 2007, 02:52:55 pm
Quote from: "bilgia"
LOL hasnt anyone dropped 0 marks??
some1 in victoria would have got 100% on methods exam 1. at least a few ppls.
Title: Exam 1 Thoughts
Post by: bilgia on November 10, 2007, 04:15:45 pm
Quote from: "asa.hoshi"
Quote from: "bilgia"
LOL hasnt anyone dropped 0 marks??
some1 in victoria would have got 100% on methods exam 1. at least a few ppls.


i kinda meant in this forum....
Title: Exam 1 Thoughts
Post by: kido_1 on November 10, 2007, 04:37:06 pm
The really funny thing is that every smart person i know(at my school and other schools) have dropped a mark somewhere, and they are all pissed off(silly mistakes).

However, I am sure 1-10 ppl would have got 40/40. Besides dont like 40-60 ppl get 50 each year in the state.
Title: Exam 1 Thoughts
Post by: bilgia on November 10, 2007, 04:44:50 pm
woohoo that leaves some more room for freestudynotes members..yay!
Title: Exam 1 Thoughts
Post by: kido_1 on November 11, 2007, 09:44:19 am
Yeh. Don't forget FSN -ers  represent a skewed population/sample of the whole VCE students.
Title: Exam 1 Thoughts
Post by: Daniel15 on November 11, 2007, 11:24:58 am
Quote from: "kido_1"
Yeh. Don't forget FSN -ers  represent a skewed population/sample of the whole VCE students.

Yeah...
All the smart people are here
Makes me feel stupid, lolz :P
Title: Exam 1 Thoughts
Post by: hakeemthedream on November 11, 2007, 11:26:00 am
lol are you guys serious?

at least 40 people in state would of got 40/40 in that exam

at least
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 11, 2007, 11:31:49 am
Quote from: "hakeemthedream"
lol are you guys serious?

at least 40 people in state would of got 40/40 in that exam

at least

lol. the reason why we are so ignorant about anyone getting 100% in the state is because we want to feel better about ourselves. and to also tell ourselves that we are in the top percentile of the state even though we mi8 not be. lol

But it is possible for no1 getting 100% on a exam paper a methods exam paper. take a look at VCAA 2004 Methods exam 2. NO ONE got 100%.
Title: Exam 1 Thoughts
Post by: Daniel15 on November 11, 2007, 11:36:59 am
Quote from: "asa.hoshi"
Quote from: "hakeemthedream"
lol are you guys serious?

at least 40 people in state would of got 40/40 in that exam

at least

lol. the reason why we are so ignorant about anyone getting 100% in the state is because we want to feel better about ourselves. and to also tell ourselves that we are in the top percentile of the state even though we mi8 not be. lol

Yep.
I like living in blissful ignorance, pretending that I'm smart. :D
Title: Exam 1 Thoughts
Post by: asa.hoshi on November 11, 2007, 11:48:41 am
Quote from: "Daniel15"
Quote from: "asa.hoshi"
Quote from: "hakeemthedream"
lol are you guys serious?

at least 40 people in state would of got 40/40 in that exam

at least

lol. the reason why we are so ignorant about anyone getting 100% in the state is because we want to feel better about ourselves. and to also tell ourselves that we are in the top percentile of the state even though we mi8 not be. lol

Yep.
I like living in blissful ignorance, pretending that I'm smart. :D
lol fair enough. i do too... sometimes........
Title: Exam 1 Thoughts
Post by: enwiabe on November 11, 2007, 02:29:55 pm
I know 1 person in my school in year 11 got 100%. But he's a freak.
Title: Exam 1 Thoughts
Post by: Jurples on November 11, 2007, 07:30:14 pm
Quote from: "enwiabe"
I know 1 person in my school in year 11 got 100%. But he's a freak.


That made me lol so hard...

Anyway I lost quite a lot of marks.. not gonna say how much lol but yeah.. :(

Gonna try hard in paper 2
Title: Exam 1 Thoughts
Post by: v2shan on November 13, 2007, 06:26:23 pm
i THINK i got 100... i checked with iTute's and others n I can't find a mistake but knowing me i probably made a stupid mistake somewhere
Title: Exam 1 Thoughts
Post by: golids on November 13, 2007, 08:47:19 pm
Quote from: "v2shan"
i THINK i got 100... i checked with iTute's and others n I can't find a mistake but knowing me i probably made a stupid mistake somewhere


ditto except if having a c in the antidiff q is wrong

shame couldn't repeat on exam 2  :lol:  :lol:  :lol:  :lol:  :lol:
Title: Exam 1 Thoughts
Post by: JL_91 on November 13, 2007, 10:14:58 pm
C constant is not wrong - it's not necessary to have it, but it is acceptable. i checked with my totally fantastic teacher, who also happens to be marking methods exams this year, so i'd take her word. well done, you guys did get 40 :)
Title: Exam 1 Thoughts
Post by: kido_1 on November 20, 2007, 06:45:45 pm
Cool.

I will tell a few mates at school who were worried that writing a C would lead to a reduction in marks.
Title: Exam 1 Thoughts
Post by: golids on November 20, 2007, 07:14:39 pm
Quote from: "JL_91"
C constant is not wrong - it's not necessary to have it, but it is acceptable. i checked with my totally fantastic teacher, who also happens to be marking methods exams this year, so i'd take her word. well done, you guys did get 40 :)


cheers :wink: