College Algebra (10th Edition)

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

Chapter 3 - Section 3.4 - Library of Functions; Piecewise-defined Function - 3.4 Assess Your Understanding: 13

Answer

(e)

Work Step by Step

This is a square root function, e.g. $y=\sqrt{x}$ because it is increasing from left to right with decreasing slope, characteristic of the square root function. Furthermore, it is undefined for negative values (because we can't take the square root of a negative number).
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