Question

HELP PLEASE!!!!!!!!!!!!!
If f(x) = −2x − 1 and g(x) = 6x − 1, find f[g(−2)]

Answer 1

Evaluate g(-2)

What do you get?

Answer 2

IS THE ANSWER-13

Answer 3

Good. Now plug that into f.

Answer 4

so -13 is the answer??

Answer 5

No, you have to evaluate f(-13).

You evaluate the inner function first. Then use that as the input to the outer function. This is called a composition of functions.

Answer 6

im lost now...... thats what i dont get idk how to get the answer

Answer 7

How did you get the -13?

Answer 8

i dont remember i forget steps

Answer 9

http://www.regentsprep.org/Regents/math/algtrig/ATP7/compositionfunctions.htm

Here are the steps in general.