College Algebra (10th Edition)

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

Chapter 3 - Section 3.1 - Functions - 3.1 Assess Your Understanding - Page 211: 36


Not a function.

Work Step by Step

We are given: $y=\pm\sqrt{1-2x}$ This is not a function, because $y$ can take on different values for the same $x$. For example: $x=0$: $y=\pm\sqrt{1-2*0}=\pm 1$
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