College Algebra (10th Edition)

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

Chapter 6 - Section 6.2 - One-to-One Functions; Inverse Functions - 6.2 Assess Your Understanding: 7

Answer

$f^{-1}(8)=3$

Work Step by Step

By definition, if $f(3)=8$, $f^{-1}(8)$ must equal 3 for it to be a one to one function. (Note, that the difference between the function and its inverse is that the x and y values are switched.)
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