### Home > AC > Chapter 12 > Lesson 12.4.2 > Problem 12-76

12-76.

*g*(17) = 7

*f*(−5) = undefined

Substitute −1 into the equation *g*(*x*) and 2 into the equation *f*(*x*).

Subtract the second answer from the first.

12-76.

*g*(17) = 7

*f*(−5) = undefined

Substitute −1 into the equation *g*(*x*) and 2 into the equation *f*(*x*).

Subtract the second answer from the first.