Answer
function
Work Step by Step
Use the vertical line test, that is, any vertical line should cross the graph only once. Any vertical line only crosses the graph once, and hence y is a function of x.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 2 - 2.3 - Analyzing Graphs of Functions - 2.3 Exercises - Page 194: 14
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