Answer
$f^{-1}(1)= 3$
Work Step by Step
Let $y = f(x)$
$y = 2x - 5$
$x = 2y - 5$
$x + 5 = 2y$
$y = \frac{x+5}{2}$
$f^{-1}(x)= \frac{x+5}{2}$
$f^{-1}(1)= \frac{(1)+5}{2}$
$= \frac{6}{2}$
$=3$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 2 - Functions and Graphs - Exercise Set 2.7 - Page 310: 61
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
