### Home > CCAA8 > Chapter 1 Unit 1 > Lesson CCA: 1.2.4 > Problem1-68

1-68.

Find $f(−4)$ for each function below.

1.  $f ( x ) = | x - 3 |$

Substitute $−4$ for $x$ into the function, then simplify.

1.  $f(x)=-5\left|x\right|$

Substitute $−4$ for $x$, then find the absolute value and solve.

$−20$

1.  $f ( x ) = | x + 1 |$

Refer to part (a).

$3$

1.  $f ( x ) = | x + 3 | - 6$

Refer to part (a).

$−5$