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# AQA A2 Mathematics MPC4 Core 4 - 9th June 2015 [Discussion & unofficial markscheme] watch

1. Got an A*, Insha Allah.
2. For question 6b, does anyone know why I got C as being (-9,-2,18)? I have seen quite a few others have got that, will I pick up any method marks? And for part c, I found 1/2 of AC and 3/2 of AC and added it onto OB, will I get any method marks for this?

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3. Yeah -3/4 was the correct one. Then you inverse that and substitute into the x =... And find x coordinate.

You should get at least half the marks for getting up to that

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4. Meh, wasted 3 hours sat here worrying if my 65 (C3) and 62 (C4) is an A*

I need to start revising mechanics soon...
5. Having seen both papers, I think it will be:
64 for an A* in core 3
64 for an A* in core 4.
6. (Original post by 2014_GCSE)
Meh, wasted 3 hours sat here worrying if my 65 (C3) and 62 (C4) is an A*

I need to start revising mechanics soon...
ahaha im in your boat, but i've got chemistry tomorrow
7. (Original post by Moskarasoul)
I did it up to sinq= -3/4 and sinq=1/2

but then i just sin inverse'd it and i rejected one of the values

how many marks do you think that'll get me?

inverting finds q

unless you plugged it back in cos2q then you would miss those last marks

if it was out of around 7
I think you would miss 2-3
8. (Original post by problemq)
Having seen both papers, I think it will be:
64 for an A* in core 3
64 for an A* in core 4.
You really think they'll be equal marks?

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9. (Original post by ubisoft)
That normal cutting the curve again was a hard question, I think very few people must've got that.
I thought it was quite tricky, I didn't realise how to do it until I'd left it and gone back to it, but I haven't really heard anyone complaining about it so maybe it wasn't as bad as I thought.
10. the model solutions dont match mark scheme
which is wrong?
11. (Original post by Ali97)
Got an A*, Insha Allah.
In Sha Allah, I didn't do that well, please make dua for me brother.
12. (Original post by ForgottenApple)
the model solutions dont match mark scheme
which is wrong?
I believe the mark scheme is right. (I'm not bragging - I didn't get half the answers I've added the the mark scheme - it's been a collective effort haha).

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13. anyone?
for 8a) how man marks would you get for ignoring t=0 and x=0 ?
14. (Original post by CD223)
You really think they'll be equal marks?

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I do since core 4 contained a large number of easily accessible marks, the first few questions were very straightforward. The only challenging parts were normal tangent intersecting (3 marks easily accessible here), vectors last part. Core 3 had a similar number of challenging parts I thought.
15. Depends on the ums but in terms of marks I think 72 on C3 and 69 on C4. Hopefully should be 200

You? @cd

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16. (Original post by hamza3256)
but you missed out k. It does not equal to 0, it equals to k which is (1/4)-ln2
.correct me if i am wrong
K is a number that differentiates to zero
17. (Original post by CD223)
I believe the mark scheme is right. (I'm not bragging - I didn't get half the answers I've added the the mark scheme - it's been a collective effort haha).

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but I imagine model solutions originate from a teacher
18. (Original post by IAmYourdog)
anyone?
for 8a) how man marks would you get for ignoring t=0 and x=0 ?
Well it was out of 7. You would miss one for finding c, one for rearranging and maybe one for substituting x and t?

So maybe 3, or 4 marks?
19. (Original post by CD223)
What do you think you've got on both papers?

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core 3 probably 85 and core 4 about 88 so no A* for me, so not going to Bath as need an A* in maths so gutted! :/ what about you?
20. (Original post by ubisoft)
Depends on the ums but in terms of marks I think 72 on C3 and 69 on C4. Hopefully should be 200

You?

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I would think so.

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