### Home > CCA > Chapter 1 > Lesson 1.2.4 > Problem 1-68

1-68.

Find *f*(−4) for each function below. Homework Help ✎

Substitute −4 for

*x*into the function, then simplify.

Substitute −4 for

*x*, then find the absolute value and solve.−20

Refer to part (a).

3

Refer to part (a).

−5