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# Arsey's S15 C1 Model Answers (attached to 1st post) watch

1. If i have the same final answers as Arsey, and obviously did working out during exam, should i just assume i got full marks on each question i got right? i can only remember my final answers.
2. Worst case scenario around 70. Best probably 72. Made some silly mistakes... C2 will hopefully be a nicer paper...
3. (Original post by TeeEm)
please vote and see how another 265 students have voted in
http://www.thestudentroom.co.uk/show....php?t=3322317
how many marks do you think i'd drop for drawing the sketch (q8b) 9x-4x^3 the wrong way round but correct (3) coords?
4. (Original post by particlestudent)
A tip for the future, if you ever need it. The y intercept for that line was +1 if you remember. So if it was on the negative side, there would be no way it could cut the y intercept on. If you get what I mean
Explain that to me! is that because p^2-6p+1>0? So the intercept was +1?
5. Could I lose marks for question 4ia? I used the arithmetic series formula instead of just 4 x 20, as a precaution
6. (Original post by naxiv)
how many marks do you think i'd drop for drawing the sketch (q8b) 9x-4x^3 the wrong way round but correct (3) coords?
-1 (or -2)
8. predicting grade boundaries is a guessing game. I don't think it was an easy paper but was probably standard for a recent session paper. Last couple of papers have been 64 and 63 for an A. I doubt it will be too far away from that.
What UMS would you get for 68-72?

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10. (Original post by particlestudent)
Where does it say to write them separately
It was an inequality question fo at the end u end up with 2 answers.
U had to plot them on graph and the mn as it was more than zero and parabola was positive had to shade outer region and give your ineq

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11. I got my series abswer as 1115000 /2 which is right but would I get the mark anyone knkw ????

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Explain that to me! is that because p^2-6p+1>0? So the intercept was +1?
Yes, the intercept was +1. Picture a positive quadratic crossing the y axis at +1. It would be impossible for it to cross the x axis at a negative value
13. Code:

past boundaries - I would say anywhere between 58-64 for 80ums
14. (Original post by TeeEm)
-1 (or -2)
yeah but isnt it A1 for shape, and A2 for coord
15. (Original post by usmanzubair)
It was an inequality question fo at the end u end up with 2 answers.
U had to plot them on graph and the mn as it was more than zero and parabola was positive had to shade outer region and give your ineq

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Yeah I get that but where does it say to write the inequalities separately? I put it as 3-2sqrt2>p>3+2sqrt2
16. (Original post by Arsey)
Code:

past boundaries - I would say anywhere between 58-64 for 80ums
Maybe june 2009 will repeat

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17. If i have the same answers as Arsey, but cant remember my working out, shall i assume full marks on those questions?
18. (Original post by Arsey)
Code:

past boundaries - I would say anywhere between 58-64 for 80ums
So would 65 be an a

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19. (Original post by naxiv)
yeah but isnt it A1 for shape, and A2 for coord
ONLY if coords are B marks(independent)
depends on how the marking scheme will be done after the sample provisional marking
20. (Original post by Arsey)
predicting grade boundaries is a guessing game. I don't think it was an easy paper but was probably standard for a recent session paper. Last couple of papers have been 64 and 63 for an A. I doubt it will be too far away from that.
Thank youuu

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