Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 4 - Section 4.3 - Equations and Inequalities Involving Absolute Value - Exercise Set - Page 284: 67

Answer

$[−9,5]$. The graph is shown below.

Work Step by Step

The given expression is $\Rightarrow \left | x+2\right |+9\leq16$ Subtract $9$ from both sides. $\Rightarrow \left | x+2\right |+9-9\leq16-9$ Simplify. $\Rightarrow \left | x+2\right |\leq7$ Rewrite the inequality without absolute value bars. $\Rightarrow-7 \leq x+2\leq7$ Solve compound inequality. Subtract $2$ from all three parts. $\Rightarrow-7 -2\leq x+2-2\leq7-2$ Simplify. $\Rightarrow-9\leq x\leq5$ The solution set $[−9,5]$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.