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11-72.

If $f(x)=7+\left|x\right|$ and $g(x)=x^3−5$, then find: Homework Help ✎

1. $f(−5)$

Substitute the value for $x$.
$f(−5)=7+|-5|=7+5=12$

1. $g(4)$

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

1. $f(0)$

Substitute the value for $x$.
$f(0)=7+|0|=7+0=7$

1. $f(2)$

See parts (a) and (c).

1. $g(−2)$

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

1. $g(0)$

See parts (b) and (e).