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# P2 Functions help! watch

1. f:x --> 7-2x
g:x --> 4x-1
h:x --> 3(x-1)

Evaluate,
a.) fg(5)

b.) ff(-2)

c.) fh(0)

Any help would be great thanks.
2. (Original post by BurnOut)
f:x --> 7-2x
g:x --> 4x-1
h:x --> 3(x-1)

Evaluate,
a.) fg(5)
just put 5 into g(x):
g(5) = 4(5) - 1 = 19
and then put this answer (19) into f(x):
f(19) = 7 - 2(19) = -31
same sort of method for the other ones
3. (Original post by BurnOut)
f:x --> 7-2x
g:x --> 4x-1
h:x --> 3(x-1)

Evaluate,
a.) fg(5)

b.) ff(-2)

c.) fh(0)

Any help would be great thanks.
fg(5) = 7 - 2(4*5-1) = -31
ff(-2) = 7 - 2(7-2*-2) = -15
fh(0) = 7 - 2(3(0-1)) = 13

I think.
4. Oh is that all?!

Thankyou.
5. Edit - Nevermind, solved it.

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