College Algebra 7th Edition

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

Chapter 2, Functions - Section 2.8 - One-to-One Functions and their Inverses - 2.8 Exercises: 29

Answer

a) $f^{-1}(2)$ = 6 b) $f^{-1}(5)$ = 2 c) $f^{-1}(6)$ = 0

Work Step by Step

a) To find $f^{-1}(2)$, find where f(x) = 2 is on the graph. The coordinates are (6,2). Therefore $f^{-1}(2)$ = 6 b) To find $f^{-1}(5)$, find where f(x) = 5 is on the graph. The coordinates are (2,5). Therefore $f^{-1}(5)$ = 2 c) To find $f^{-1}(6)$, find where f(x) = 6 is on the graph. the coordinates are (0, 6). Therefore $f^{-1}(6)$ = 0
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