Chapter 4.3, Problem 55E

To determine

To evaluate the expression.

Answer to Problem 55E

  $13$

Explanation of Solution

Given information: $x=4,y=-9$

Formula Used: $\left|x\right|=\left|4\right|=4$ , $\left|y\right|=|-9|=9$

Calculation:

To make calculation of $\left|x\right|+\left|y\right|$

  $\left|4\right|+|-9|$

As absolute sign is available with -9, it changes to positive.

  $4+9$

Final answer-

  $13$