Answer
$f^{-1}(x) = \frac{x+5}{2}$
Work Step by Step
$f(x) = 2x -5$
Let $y = f(x)$
$y = 2x-5$
$x = 2y-5$
$x + 5 = 2y$
$y = \frac{x+ 5}{2}$
$f^{-1}(x) = \frac{x+5}{2}$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Appendix A - Section A.2 - The Inverse of a Function - A.2 Problem Set - Page 496: 12
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