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AQA A Level Maths Core 2 - 25th May 2016 [Exam Discussion]

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I defo failed core 2... wth was that ****
It's out of 75


This thread's for AQA. It'll probably skew your results.
Original post by goofyygoober
What is the question about?


Integration, find the value of a (it was -2 I believe)
Predicted Grade Boundaries

A - 61
B - 56
C - 51

Was easier than last year but not the easiest paper there's been.
What has been 100ums on the past c2 papers does anyone know?
Anyone remember the original question about the strecth in axis one????
Original post by Loukia98
What did you find for the value of k? Does anyone remember?


I got 5 somehow but I'm not sure how or if it's right lol
Original post by goofyygoober
What is the original function for x?
Is it (x^2+9)^1/2 or (x^2+1)^1/2?


(X^2 +9)^1/2 was the original and was transformed into 3(x^2 + 1)^1/2
1b is -2 mate
Original post by BenAtkinson
UN-OFFICIAL MARK SCHEME.
Of what I can remember..

1. b) a=2
2. b) x=-0.861
c) reflection in y-axis
3. a) 3x^-1/2 - 1
b) y=6
c) y + 2x = 13
d) k = 5.5
4. b) d = -2, a = 28
c) Sum to 21 - sum to 3. Can't remember exact.
5. b) area = 19.9
c) perimeter = 13.8 (something like that)
6. a) 65.6
b) i) translation (0,5)
ii) stretch in X-direction 1/3 sf
7. b) -1648
8. b) can't remember! Tan(X) = 1 and tan(X) =-5/4
c) lowest = 2, when theta = pi
9. a) c^(m/2 +6n)
b) X = 5/2


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Original post by salome12
(X^2 +9)^1/2 was the original and was transformed into 3(x^2 + 1)^1/2


then stretch in x-direction by sf 1/3 is correct:frown:
Original post by Parhomus
11/2


Yep i got the same but some found k=5. Thank you
I got K = -5.5 because the line needed to shift rightwards
i counted 49/68 for the unofficial mark scheme it didnt include the 7 marks to get it to 75?
Made a poll for the AQA Core 2 Exam (FOR AQA ONLY):

http://www.thestudentroom.co.uk/showthread.php?t=4117603
Reply 217
Original post by Bradley99
I got K = -5.5 because the line needed to shift rightwards


True right?
Original post by Alexcor
True right?


Yeah!
How do you do question 8 b) 😊

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