Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 2 - Functions, Equations, and Graphs - 2-1 Relations and Functions - Practice and Problem-Solving Exercises - Page 66: 37


y is not a function of x

Work Step by Step

$y$ is not a function of $x$ because when it is graphed, a vertical line passes through more than one point on the line. Each x coodinate greater than $\frac{7}{3}$ corresponds with two y coordinates. Since there is more than one value in the range corresponding with each value in the domain, the relation is not a function.
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