College Algebra (10th Edition)

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

Chapter 6 - Test - Page 502: 2

Answer

See below.

Work Step by Step

If $g$ is one-to-one then for all $y=g(x)$ there is only one $x$. a) $y=7$ for $x=1$ and $x=-1$ thus it is not one-to-one b) $y=\sqrt{x+3}-5$ is strictly increasing on its domain, thus it is one-to-one
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