Answer
a)$5$
b)$4$
Work Step by Step
The definition of an inverse is $f^{-1}(y)=x$ while $f(x)=y$, so x is the answer for a and y is the answer for a and y is the answer for b
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 2 - Section 2.8 - One-to-One Functions and Their Inverses - 2.8 Exercises - Page 226: 26
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