Home > INT1 > Chapter A > Lesson A.1.9 > ProblemA-98

A-98.

Evaluate the expressions below for the given values.

1. $30-2x$ for $x=-6$

Substitute in $-6$ for $x$.

$30-2(-6)$

Evaluate

$42$

1. $x^2+2x$ for $x=-3$

Follow the steps in part (a).

1. $-\frac{1}{2}x+9$ for $x=-6$

Follow the steps in part (a).

$12$

1. $\sqrt { k }$ for $k=9$

Follow the steps in part (a).

$3$