Question

can someone help me with qs 4 please???

Answer 1

\[\sqrt{4}?\]

Answer 2

from this link http://www.ocr.org.uk/download/pp_10_jun/ocr_57857_pp_10_jun_gce_475201.pdf

Answer 3

I don't know sorry

Answer 4

you can find the actuallyy functions for them

Answer 5

because you know f(x)

Answer 6

F(x)=(x^2-5x)
f(2x)=(4x^2-10x)=4x(x-2.5)
now the intersection points will be 0 and 2.5 instead of 0,5

Answer 7

for 3f(x) you have to multiply 3 with the ordinates of that points. Now you can draw it.

Answer 8

the multiply by 3 would it be 3x^2-15x???

Answer 9

yes.

Answer 10

but that o and 5 again
and in the mark scheme it says minimum points and there different to 0, 2.5 and 0,5

Answer 11

im confused :S