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# OCR MEI - C1 - 13th May 2015 watch

1. Does anyone know if you are penalised for not fully simplifying solutions to quadratics having used to quadratic formula? I wrote x= (2+sqrt(44))/5

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2. For 10 iii did it ask you to find the new roots of f(g) or f(g) = 0 in its factorised form???
3. (Original post by jpetersgill)
By that you mean k>14/3 ? That's what I got

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Yes, exactly that. Was an easy question.
4. How many marks was the completing the square and min point worth?
5. (Original post by vgnnbvv)
For 10 iii did it ask you to find the new roots of f(g) or f(g) = 0 in its factorised form???
i fackin hope it didn't lol
6. (Original post by JamesExtra)
How many marks was the completing the square and min point worth?
2 I think.
7. Just done the paper (ocr c1 june 2015) was an ok paper. Question 6 was quite hard. Made a stupid mistake on last question. Fingers crossed.
8. Unofficial mark scheme?
1) Make r the subject. A=πr^2(x+y)
9. Is not simplifying a problem?

Idk why but I always thought theyspecifically ask you to simplify if they wanted it simplified and I sometimes see simplified and non simplified as the answer?
I'm worried now cause there were quiet a lot of fractions and my dad thinks I'm stupid now for not doing it lol
10. what did everyone get on Q12 part 2

for completing the square i got

3(x+2)^2+1 ?
11. (Original post by simon1207)
what did everyone get on Q12 part 2

for completing the square i got

3(x+2)^2+1 ?
How many marks was that worth?
12. (Original post by simon1207)
what did everyone get on Q12 part 2

for completing the square i got

3(x+2)^2+1 ?
13. (Original post by JamesExtra)
How many marks was that worth?
The whole question was 5 i think because you had to state why the curve doent cross the x axis!
14. (Original post by particlestudent)
what do you mean ?
15. (Original post by simon1207)
The whole question was 5 i think because you had to state why the curve doent cross the x axis!
I got it wrong and put 3(x+2)^2+9 then said it doesn't cross because min point is (-2,9) how many marks will I get??
16. i think you will lose three marks fro completing the square wrong but you might get 2 for stating that it doesn't cross it. Not sure though
17. For 12i if it was 4 marks and i got to k>4 1/3 how many marks would i get for putting 13/3 instead of 14/3
18. GUYS HOW WAS IT?

Q12 and the surd part ii killed me.

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19. (Original post by simon1207)
i think you will lose three marks fro completing the square wrong but you might get 2 for stating that it doesn't cross it. Not sure though
Ok thanks
20. i out 56/12 which is the same as 14/3 but i think you will only loose one mark as your method would be correct

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