Suggested Answers (and Discussion) of the Further Maths Exam 2!

[Kimahso]

For the intercept question I didn't write 'on average'. Will I still get a mark?

[babushka818]

For the intercept question I didn't write 'on average'. Will I still get a mark?

I didn't either, should be fine

[surviveandderive]

I realised after the exam that for the last question in geometry that I had halved the radius for some reason - very frustrating and have no idea why I did it. My working out was fine, I used the right formula in subtracting the smaller sector from the larger. Do you think I will get 1 mark for that? Only question I got wrong unfortunately.

[yasmin.s]

for the networks question about crashing, I got $10000 as the minimum amount, because you could crash them all to 13 days as the shortest time??? how did people get $2000 as the answer ??

[Gromekk]

I realised after the exam that for the last question in geometry that I had halved the radius for some reason - very frustrating and have no idea why I did it. My working out was fine, I used the right formula in subtracting the smaller sector from the larger. Do you think I will get 1 mark for that? Only question I got wrong unfortunately.

I didn't even subtract 4.5 from 12, rest in pepperoni for me. hopefully only lose 1 for that since the rest was good

[surviveandderive]

I didn't even subtract 4.5 from 12, rest in pepperoni for me. hopefully only lose 1 for that since the rest was good

Yeah hopefully, was way to casual with it as I had heaps of time, just goes to show you need to be focused for the entire exam. Can't do anything now I guess, gotta focus on chem now 

[Kimahso]

for the networks question about crashing, I got $10000 as the minimum amount, because you could crash them all to 13 days as the shortest time??? how did people get $2000 as the answer ??

There was a path ADK which was 14 days and you couldn't reduce A, D or K. So reducing any of the other paths below 14 days wouldn't have done anything since ADK would continue to be 14 days.

[theDarkLord]

can you please add suggested answers to the geometry as well?

[apan]

Is it incorrect to say the second boxplot is slightly positively skewed for 2bi core?

I said the same! Honestly it's so hard to tell what vcaa will and won't accept. We will have to wait until after the examiners report comes out to find out

[deejay9]

In Question 3b ii. The intercept according to the graph is when the actual temperature is at 20 and not 0; so is this the intercept that we should be interpreting so that the apparent temperature would be at 17.1?

That isn't the intercept because the graph didn't begin at 0. The y-intercept always occurs when x=0 and that point wasn't shown on the graph. Think of the graph in the question as just a section of the full thing.

[Kimahso]

For question 2bi, would i not get the mark because i just wrote positively skewed instead of positively skewed with an outlier?

It explicitly mentioned 'including outliers' so probably no mark for that.

[meddentdream]

How did people get 4 ways for the networks question?
I got 2 ways, because the 3rd and 4th way was just the 1st and 2nd way but opposite... did i have to count them as separate ways as well?

[maddymerz]

will you lose marks if you didnt add the T at the end of the bearing?

Quickly scanning through the answers I realised I left off the 0 at the start and the T as well! Which is really frustrating seeing as though that was something I specifically clarified with my teacher before the exam. Thinking about the given diagram though, I think they just included the angles as 50^o and 54^o for example, so hopefully it will be okay...

[Syndicate]

Just realised that question 2b in geometry and measurement hasn't been done.

Q2b) \( tan^{-1}( \frac{16.8}{200}) \approx \space 5^{\circ} \)

[Kimahso]

How did people get 4 ways for the networks question?
I got 2 ways, because the 3rd and 4th way was just the 1st and 2nd way but opposite... did i have to count them as separate ways as well?

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