### Home > CCA > Chapter 3 > Lesson 3.3.1 > Problem3-86

3-86.

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)= 4³ − 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).