CPM Homework Help : INT1 Problem 3-72

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3-72.

If $f\left(x\right)=7+\left|x\right|$ and $g(x)=x^3-5$ , evaluate:

$f(-5)$
Hint (a):
Substitute the value for $x$ .
$f(−5) = 7 +\left|-5\right| = 7 + 5 = 12$

$g(4)$
Hint (b):
Substitute the value for x.
$g(4)= 4^3 − 5 = 64 − 5 = 59$

$f(0)$

Hint (c):
Substitute the value for x.
$f(0) = 7 + \left|0\right| = 7 + 0 = 7$

$f(2)$
Hint (d):
See parts (a) and (c).

$g(−2)$
Hint (e):
Substitute the value for x.
$g(−2) = (−2)^3 − 5 = −8 − 5 = −13$

$g(0)$
Hint (f):
See parts (b) and (e).

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