Question

Functions help

Answer 1

Just sub in g(x) into f(x), simplify, then evaluate at x = 5

Answer 2

f (5-1/4) = 5-1/4^2 - 3 * 5 - 1/4 + 3

Answer 3

Right, what do you get?

Answer 4

umm f = -117/76

Answer 5

?

Answer 6

No.

okay, so what I think you are doing wrong is you are trying to do it all in one step.

Let's do it step by step.

F(g(x)) = ((x-1)/4)^2 - 3* ((x-1)/4) + 3

Answer 7

Simplify.

We get

((x-1)^2)/16 - (3(x-1))/4 + 3

Answer 8

Now sub in 5, this is as simple as it's going to get.

Let me know the result you get.

Answer 9

(5 - 1) ^ 2) / 16 - (3(5 - 1)) / 4 + 3 ??

Answer 10

Yes, so we get:

16/16 which is 1 MINUS

3(4)/(4) well the 4's cancel, so we are left with 3 PLUS 3

So we get:

1 - 3 + 3

Which is simply 1.

Answer 11

THANK YOU

Answer 12

No problem.