Methods Exam 1: Discussion!

[Escobar]

got 33-35 for this exam
about what mark do i need tomorrow for a 40+?
rough estimate

[bobisnotmyname]

hey guys,
for part 2 of the last question, If I found the wrong value of v in terms of u, on the second question would I get a mark for finding the area by subbing in the wrong value of v?

[Dev1998]

I think I got about 35/36 (idek) out of 40and like I'm stressing so much now since so many people seem to have gotten 100% you know, my SAC marks are around 100% scaled, so if I did well on Exam 2, is there any chance at all for like 46/47? (

[Kaleidoscope]

Here are my preliminary solutions guys

I didn't check them, so I may have a few mistakes, but based on conversations with guys who did the exam they seem correct.

P.S. I have a blank copy of the exam too, so I'll upload that next.

Edit: I can now confirm my solutions are correct, except the graph is a bit revolting: I think it should go through (1,2) to get full marks.

Hey Chuck, can I ask how you knew to use OVU and PQU as similar triangles, not RVQ and PQU? Thanks.
EDIT: I'm talking about q10bi (as you've probably realised)

[Valyria]

Generally, no. However, they make exceptions depending on how many other students didn't simplify. Basically, the examiners all have a meeting where they mark a few papers together to get a feel for how students went and the different methods they used. If a sufficient number of people wrote ln(32) they will accept it for the sake of the grade distribution. However, I feel that it is unlikely in this case because it's not especially complex and given that the 2 was there originally - you needed to raise 2^5 to get the 32 in the first place (i.e. you overcomplicated, rather than neglecting to simplify). In the exam last year on Question 10 they accepted all variations of the solution, but that was a long expression with hideous fractions and logs - so it's a different scenario.

I've never seen in the assessors reports for either methods or spesh where they penalise students for not applying log laws to change the final answer to look more elegant. In32 = 5In2

[chuck981996]

Hey Chuck, can I ask how you knew to use OVU and PQU as similar triangles, not RVQ and PQU? Thanks.
EDIT: I'm talking about q10bi (as you've probably realised)

I could have used RVQ and PQU, or even RVQ and OVU - it doesn't matter, they're all similar. The reason I chose the pair I did was because OVU had v by itself and PQU didn't have a v, which made it only 1 step to simplify

[jak345]

Random question can someone please tell me if, on 2011's exam 2, the co-ordinate for the endpoint of the parabola (-1, 0) is an error? I thought it would be (0, -1)...maybe I'm losing my mind.

[chuck981996]

I've never seen in the assessors reports for either methods or spesh where they penalise students for not applying log laws to change the final answer to look more elegant. In32 = 5In2

Well, to be fair, it hasn't rally come up all that often. The last time I can remember there was a (numerical) log in an answer was 2013, and I explained that case. This is just based off what the chief assessor said when they came to my school, but I could very well be wrong.

[Kaleidoscope]

I could have used RVQ and PQU, or even RVQ and OVU - it doesn't matter, they're all similar. The reason I chose the pair I did was because OVU had v by itself and PQU didn't have a v, which made it only 1 step to simplify

Ah gotcha, thank you!

[ninwa]

Here are my preliminary solutions guys

I didn't check them, so I may have a few mistakes, but based on conversations with guys who did the exam they seem correct.

P.S. I have a blank copy of the exam too, so I'll upload that next.

Edit: I can now confirm my solutions are correct, except the graph is a bit revolting: I think it should go through (1,2) to get full marks.

Hey Chuck, could you please post your solutions and your scanned exam as a separate thread so I can sticky it? Thanks

[nikegod]

I have B+ SACs in a medium-strong cohort, and got 31-33 for exam 1. Roughly what would I need to get for exam 2 to get around a 35 SS?

[chuck981996]

Hey Chuck, could you please post your solutions and your scanned exam as a separate thread so I can sticky it? Thanks

Done. Thanks ninwa

[ninwa]

Done. Thanks ninwa

Thanks! Appreciate your efforts - and gave you a shout out on the Facebook page

[althepal]

Hi everyone sorry if this sounds like a really obnoxious question, but what would be the highest number of marks you would need to get on exams 1 and 2 to get a ss of 48+?

[Orb]

Hi everyone sorry if this sounds like a really obnoxious question, but what would be the highest number of marks you would need to get on exams 1 and 2 to get a ss of 48+?

For last year it was somewhere in the range of 114/120
It varies every year, to be truly safe, somewhere like 118/120 would guarantee you 48+