College Algebra (11th Edition)

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

Chapter 2 - Section 2.6 - Graphs of Basic Functions - 2.6 Exercises - Page 238: 4

Answer

(C) $x=y^2$

Work Step by Step

Graph (C) can not be a function because it fails the vertical line test. An arbitrary vertical line can pass the graph in more than one point, indicating that two $y$ values can exist for one $x$ value (not a function). The graph is an inverted parabola $x=y^2$.
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