VCE Maths Methods Exam 2 Discussion/Solutions

[messi10]

https://www.desmos.com/calculator/kxpfx9qu2c
To those who have experience, is this graph used to predict study score for methods accurate???
thanks

[Pinkydoo]

34/40 Exam 1
66/80 Exam 2
SACs Lowish A+, ranked quite highly in a competitive cohort, SACs get scaled up by quite a lot

Can I possibly get a 40? 

[skrrrt]

Did anyone answer with dilate by a factor of 1/loge2 from the y/x axis instead of 1/k ? 

[Pinkydoo]

Did anyone answer with dilate by a factor of 1/loge2 from the y/x axis instead of 1/k ? 

Nope, sorry mate

[laws12]

Sac's are a low A+, about 92% in an average cohort
Exam 1- 36/40
Exam 2- 67/80

What do you reckon I've copped, many thanks

[TwoStepStepOut]

Found today's exam to be quite challenging. Disappointed at the lack of a Tasmania Jones question.

However, I started thinking about this when I was completing the Ferris Wheel question:
https://m.youtube.com/watch?v=Onw7VStieb8

edit: Spelling error.

[princessofpersia]

Seems like VCAA is deciding to change their game a bit. The E.Respose questions required a lot of brain power, compared to the previous years. I feel like they were trying testing how how far we understand the complexities of grapghs, rather than knowing the basics such as stationary points, asymptotes etc. of functions

imo they should have given us a heads up about the change (at methods PDs), b/C I expected the exam to to be similar to last years since the curriculum changed last year not this year, and after doing all those trial exams particular patterns of questions (from over the years) become embedded in our minds, and today's exam didn't really conform to that style.

[ZNormal]

Hey guys, I don’t do spesh but for the question where it asked for where the rate of change is at its maximum, I double derived the function. I didn’t realise this was double deriving was spesh(I think??) so will they still give me marks?

[Sine]

Hey guys, I don’t do spesh but for the question where it asked for where the rate of change is at its maximum, I double derived the function. I didn’t realise this was double deriving was spesh(I think??) so will they still give me marks?

vcaa has been pretty vague on whether double deriving is ok. However on last years e1 for a local minimum question it wasn't listed as a possible technique so I don't think you can get marks. It really depends on the assesors that you get imo

[jazzycab]

Any correct mathematics is acceptable, regardless of whether it's in the course or not so second derivative is fine

[dowe]

14/40 Exam 1
48/80 Exam 2
SACs Lowish A+, ranked secondish in a (myself included) dismal cohort

Any chance for a 30?

[Conic]

Hey guys, I don’t do spesh but for the question where it asked for where the rate of change is at its maximum, I double derived the function. I didn’t realise this was double deriving was spesh(I think??) so will they still give me marks?

I don't see any problems with this type of approach. It seems like you just applied standard results about maxima and minima from the study design to a function that happens to be the derivative of another function. The use of double derivatives tends to be more of an issue when students use them to classify stationary points, which doesn't seem to be what you did.

[ZNormal]

Any correct mathematics is acceptable, regardless of whether it's in the course or not so second derivative is fine

I don't see any problems with this type of approach. It seems like you just applied standard results about maxima and minima from the study design to a function that happens to be the derivative of another function. The use of double derivatives tends to be more of an issue when students use them to classify stationary points, which doesn't seem to be what you did.

vcaa has been pretty vague on whether double deriving is ok. However on last years e1 for a local minimum question it wasn't listed as a possible technique so I don't think you can get marks. It really depends on the assesors that you get imo

Thank you so much guys

[dk1234]

Hi,
what kind of a ss would exam 1 - 30/40 and exam 2 - 56/80 get
thanks

[buquine]

Thoughts on if this required any working out? Would just the integer be enough for 2 marks?
2. h.)

Thanks, sorry if this has been answered