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 3 - Polynomial and Rational Functions - Chapter Test - Page 270: 11

Answer

$(-\infty,3)U(8,\infty)$.

Work Step by Step

Step 1. For $\frac{x+2}{x-3}-2\lt0 \Longrightarrow \frac{-x+8}{x-3}\lt0$, identify the boundary points $x=3,8$. Step 2. Form intervals $(-\infty,3),(3,8),(8,\infty)$. Step 3. Choose test values for each interval $x=0,4,9$. Step 4. Test the inequality and get results $True,\ False,\ True.$ Step 5. Thus we have the solution $(-\infty,3)U(8,\infty)$.
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