College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 6 - Test - Page 502: 3

Answer

$f^{-1}(x)=\frac{2}{3x}+\frac{5}{3}$

Work Step by Step

$f(x)=\frac{2}{3x-5},$ $y=\frac{2}{3x-5},$ $Domain =\{x|x \in \mathbb{R}, x\ne \frac{5}{3}\}$ $Range=\{y|y \in \mathbb{R},y\ne0 \}$ $x=\frac{2}{3y-5},$ $3y-5=\frac{2}{x},$ $3y=\frac{2}{x}+5,$ $y=\frac{2}{3x}+\frac{5}{3}=f^{-1}(x)$ $Domain=\{x|x \in \mathbb{R},x \ne 0\}$ $Range=\{y|y \in \mathbb{R}, y \ne \frac{5}{3}\}$
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