You are Here: Home >< Maths

# AQA maths core 1, 13th May 2015 watch

1. for the tangent at A, did we have to put it in a specific form?
2. (Original post by Kiloby)
4. Equation of circle : (x+1)^2 + (y-3)^2 =50
Centre = (-1,3)
K = (-2,8)
Shortest distance (C to QR) = 7
In this question didnt it ask for two possible values of the y coordinate for k? I had to use the quadratic equation and got something like 3 plus or minus root33
Cylinder question I messed up the first 5 marks. But the second part of it was okay.

Posted from TSR Mobile
Same

Posted from TSR Mobile
4. Feeling a bit more confident after people posted their answers i now know ive dropped 6-7 marks max ) keep them coming, and someone please do an unofficial mark scheme if you have the time haha!
5. (Original post by Kiloby)

8. -9/4<k<4
Are you sure it was -9/4.. I thought it was -4/9..
6. Any guesses on what mark is needed for full UMS?
Did anyone get k = 8 or -8 for the last question on solving inequalities?
You needed to use critical values

Posted from TSR Mobile
8. was 62 for an a last year and with the majority of people not getting the cylinder volume question right wouldn't imagine it would be any higher than 60 for an A
9. anyone know how we were supposed to sketch the graph?
I sketched a cubic with points at x-intercepts at -3, 0, 3
10. for question x+2 (x^2+bx+c)

i for c as 10 but b as -1 so -x
did u have to expand brackets?
11. (Original post by Heffalump .)
Are you sure it was -9/4.. I thought it was -4/9..
I also got -4/9 as the factorised quadratic inequality was (9k+4)(k-4)<0
12. (Original post by Moe21)
anyone know how we were supposed to sketch the graph?
I sketched a cubic with points at x-intercepts at -3, 0, 3
There was a double '0' root. so it started under the x axis and to the left of the y axis, the went up to the origin, touched it, went back down, then went back up to '3' on the a axis and passed above to x axis to the right of the y axis.
13. The formula for the area of a cylinder was in the formulae booklet...guessing no one thought of looking in there, during a core 1 paper 😂

Posted from TSR Mobile
14. (Original post by Greg213)
Any guesses on what mark is needed for full UMS?
Was 74 last year so might be 1 or 2 less, doubt it will be any more
15. (Original post by Flangastic)
The formula for the area of a cylinder was in the formulae booklet...guessing no one thought of looking in there, during a core 1 paper 😂

Posted from TSR Mobile
tf, I did look there, I couldn't find ****
Had to do it from memory
16. How did everyone draw the graph of x^2(x-3)??
17. Didn't get the first part of the cylinder question but then got 4 for the stationary point and -12 pie for the maximum?
18. (Original post by Anam)
How did everyone draw the graph of x^2(x-3)??
(Original post by Heffalump .)
There was a double '0' root. so it started under the x axis and to the left of the y axis, the went up to the origin, touched it, went back down, then went back up to '3' on the a axis and passed above to x axis to the right of the y axis.
--
19. Can you write the general topic of each question?) might jog people's memory

Posted from TSR Mobile
20. (Original post by Heffalump .)
--
i don't understand what you mean! i did it so that the curve touched the 3 on x axis and went up and down towards 0

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 27, 2016
Today on TSR

### A-Level OCR Biology Exam Discussion

Find out how you've done here

### 2,650

students online now

Exam discussions

### Find your exam discussion here

Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE