Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 5 - Exponential and Logarithmic Functions - 5.3 Exponential Functions - 5.3 Assess Your Understanding - Page 285: 137

Answer

$ (2,\infty)$.

Work Step by Step

Step 1. Rewrite the inequality as $\frac{x+1}{x-2}-1\ge0$ or $\frac{3}{x-2}\ge0$. Step 2. Identify the boundary point(s) $x=2$ and intervals $(-\infty,2),(2,\infty)$. Step 3. Choose test values for each interval $x=0,3$ and test the inequality to get $False,\ True$. Step 4. We can identify the solution intervals $ (2,\infty)$.
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