### Home > PC > Chapter 2 > Lesson 2.3.8 > Problem2-172

2-172.

Let $g ( x ) = \left\{ \begin{array} { l l } { 3 + x ^ { 2 } } & { \text { if } x < - 2 } \\ { 2 x } & { \text { if } - 2 \leq x < 1 } \\ { 11 - x ^ { 2 } } & { \text { if } \quad x \geq 1 } \end{array} \right.$. Evaluate:

1. $g(3)$

Substitute $3$ into the expression that includes $3$ as part of the domain.

1. $g(-1)$

$-2$

1. $g(-2)$

Be careful to see if the domain includes $-2$.

1. $g(4)$

$−5$