Answer
$y$ is a function of $x$
Work Step by Step
Note that all vertical lines will pass through, at most, one point on the graph.
Thus, the given graph represents a function, for the graph passes the vertical line test.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 2 - Section 2.2 - Graphs of Functions - Exercise Set - Page 122: 18
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