College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 4 - Section 4.1 - Inverse Functions - 4.1 Exercises - Page 394: 9



Work Step by Step

Check to see that $f(a)=f(b)$ means $a=b$. $2a-8=2b-8$ Add 8 to each side. $2a=2b$ Divide each side by 2. $a=b$. Yes.
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