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# OCR MEI C3 Maths June 2015 watch

1. help with this question ppl
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2. (Original post by docdoc02)
help with this question ppl
From the graph they have handily given you, you know that:

and:

Can you do the rest?
3. (Original post by Jai Sandhu)
From the graph they have handily given you, you know that:

and:

Can you do the rest?
why cant it be a(-x-b)=-x
or a(-x-b)=x
also i dont understand how they got b=0.25
4. (Original post by docdoc02)
help with this question ppl
Alternatively notice that it is just a transformation of . You should be able to easily find b then, and then a.
5. (Original post by lizard54142)
Alternatively notice that it is just a transformation of . You should be able to easily find b then, and then a.
Spoil sport stop stalking me. Btw, I was making reference to part 2
6. (Original post by Jai Sandhu)
Spoil sport stop stalking me.

7. (Original post by lizard54142)
Alternatively notice that it is just a transformation of . You should be able to easily find b then, and then a.
why is b=0.25 and not 0.5?
8. (Original post by docdoc02)
why is b=0.25 and not 0.5?
I don't get b as either of those... which past paper is this?
9. (Original post by lizard54142)
I don't get b as either of those... which past paper is this?
Yeah... I didn't get b=1/2 or 1/4, I thought I might have done something wrong but I am pretty confident in what I got.
10. (Original post by lizard54142)
I don't get b as either of those... which past paper is this?
oh sorry i meant a= 0.5 my bad, i got it right just didnt read the mark scheme properly, it was the june 2013 paper
11. (Original post by Jai Sandhu)
Yeah... I didn't get b=1/2 or 1/4, I thought I might have done something wrong but I am pretty confident in what I got.
sorry i meant a :/ but i didnt read the mark scheme properly
why cant it be a(-x-b)=-x
or a(-x-b)=x
for the second part
12. Does anyone have june 2014 paper if yes please post
13. (Original post by docdoc02)
sorry i meant a :/ but i didnt read the mark scheme properly
why cant it be a(-x-b)=-x
or a(-x-b)=x
for the second part
Look at the graph and the points at which the 2 lines intersect.
14. (Original post by docdoc02)
help with this question ppl
as it is a transformation of y=IxI, i think b=1 because f(x+1) is a translation of 1 unit to the left parallel to the x-axis, and A i think will be the degree to which the graph is stretched or squashed parallel to the y-axis in relation to the graph of y=IxI
15. (Original post by docdoc02)
sorry i meant a :/ but i didnt read the mark scheme properly
why cant it be a(-x-b)=-x
or a(-x-b)=x
for the second part
It can, you've written the same thing as Jai did, just in a different way.

(Original post by bapu_01)
Does anyone have june 2014 paper if yes please post
http://www.thestudentroom.co.uk/show...7#post56794477
16. [QUOTE=lizard54142;56853983]It can, you've written the same thing as Jai did, just in a different way.

(Original post by Jai Sandhu)
Look at the graph and the points at which the 2 lines intersect.
thank you!
17. I appreciate the help from the previous question and im stuck on question 5. I understand to use the product rule but not the not until i have got the full differential equation and not simplified yet. after that i dont know how to get the result. thanks.
http://www.mei.org.uk/files/papers/2011_June_c3.pdf
18. (Original post by Velocity_)
I appreciate the help from the previous question and im stuck on question 5. I understand to use the product rule but not the not until i have got the full differential equation and not simplified yet. after that i dont know how to get the result. thanks.
http://www.mei.org.uk/files/papers/2011_June_c3.pdf
I don't understand what you've typed... this question is just an application of the product rule. Post your working?
19. you know when doing proofs you can say even number is 2x, odd number is 2x+1, what others are there e.g. A prime number?
Because i really struggle on these
20. (Original post by Alevelstudent678)
you know when doing proofs you can say even number is 2x, odd number is 2x+1, what others are there e.g. A prime number?
Because i really struggle on these
You cannot define a prime number like you would an even or odd number. Make sure you know how to prove is irrational, or is irrational etc...

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