CPM Homework Help : CCA Problem 1-68

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1-68.

Find $f(−4)$ for each function below.

$f ( x ) = | x - 3 |$
Hint (a):
Substitute $−4$ for $x$ into the function, then simplify.

$f(x)=-5\left|x\right|$
Hint (b):
Substitute $−4$ for $x$ , then find the absolute value and solve.
Answer(b):
$−20$

$f ( x ) = | x + 1 |$
Hint (c):
Refer to part (a).
Answer (c):
$3$

$f ( x ) = | x + 3 | - 6$
Hint (d):
Refer to part (a).
Answer (d):
$−5$

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