College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 2, Functions - Chapter 2 Test - Page 272: 20


$f^{-1}(1)=0$ $f^{-1}(3)=4$

Work Step by Step

We see from the graph that $f(0)=1$. This means that $f^{-1}(1)=0$ ($x$ and $y$ get switched). Similarly, we see from the graph that $f(4)=3$ and therefore $f^{-1}(3)=4$.
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