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# Will I get the marks? (EDEXCEL GCSE Maths)

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1. So basically for question 23 (c) I labelled the midpoint of PT as M and the midpoint of OR as N. Then I found the vector MN to be (b-a) and the vector MS to be (b-a)/4. Then I wrote that S divides the line MN in ratio 1:3. Do you think that I can get at least 1 mark or full marks? I got the rest of the paper correct so I was wondering if I am able to get 100/100.
2. (Original post by Ace2233)
So basically for question 23 (c) I labelled the midpoint of PT as M and the midpoint of OR as N. Then I found the vector MN to be (b-a) and the vector MS to be (b-a)/4. Then I wrote that S divides the line MN in ratio 1:3. Do you think that I can get at least 1 mark or full marks? I got the rest of the paper correct so I was wondering if I am able to get 100/100.
I don't know what the question actually asked for... do you have any more details?
3. (Original post by Dowel)
I don't know what the question actually asked for... do you have any more details?

Question 23 (c)
4. How did you work out MS as 1/4 (b-a) ? The first bit is right btw.
If you just assumed MS then you will lose a mark.
5. (Original post by Dowel)
How did you work out MS as 1/4 (b-a) ? The first bit is right btw.
If you just assumed MS then you will lose a mark.
I found that MS=MP+PS so MP=-1/2b and PS=1/4(-a+3b)=-1/4a+3/4b. When you add them them you get -1/2b+3/4b-1/4a which then gives you 1/4b-1/4a which can be factorised to (b-a)/4
6. (Original post by Dowel)
I don't know what the question actually asked for... do you have any more details?
Is this 2016??? How did you get this paper...I'm in year 10 btw.
7. Do you know where you can get foundation?
8. (Original post by *Alisha*)
Do you know where you can get foundation?
Sorry I don't know. I found the paper here on TSR
http://www.thestudentroom.co.uk/show....php?t=4120523
9. (Original post by Ace2233)
I found that MS=MP+PS so MP=-1/2b and PS=1/4(-a+3b)=-1/4a+3/4b. When you add them them you get -1/2b+3/4b-1/4a which then gives you 1/4b-1/4a which can be factorised to (b-a)/4
I just realised the question asks you to use your answer to part b, if it didn't I would say you get full marks but because you haven't used your answer for b you probably won't.
10. (Original post by Dowel)
I just realised the question asks you to use your answer to part b, if it didn't I would say you get full marks but because you haven't used your answer for b you probably won't.
I see. Thanks for the help.

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