### Home > AC > Chapter 13 > Lesson 13.OF1-S > Problem 7-136

7-136.

If

*f*(*x*) =*x*^{4}and*g*(*x*) = 3(*x*+ 2), find the value of each expression below. Homework Help ✎*f*(2)*g*(2)*f*(*g*(2))*g*(*f*(2))Are

*f*(*x*) and*g*(*x*) inverses of each other? Justify your answer.

16

Substitute the output for *g*(2) into *f*(*x*).

20,736

What happens to the original input when the two functions are inverses?