Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 2 - Linear and Quadratic Functions - Section 2.8 Equations and Inequalities Involving the Absolute Value Function - 2.8 Assess Your Understanding - Page 181: 5

Answer

$$-3\lt x\lt4 .$$

Work Step by Step

We solve for $x$ as follows: $$ -1\lt2x+5\lt13 \Longrightarrow -5-1\lt2x\lt13-5\\ \Longrightarrow -6\lt2x\lt8\Longrightarrow -\frac{3}{2}\lt x\lt\frac{8}{2}\\ \Longrightarrow -3\lt x\lt4 .$$
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