Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Cumulative Review - Page 252: 27

Answer

The relation $x=y^2$ is not a function as some x-values are paired with more than one y-value.

Work Step by Step

RECALL: $\\\\$A relation is a function if each x-coordinate is paired with only one y-coordinate. $\\\\$In the given relation, the points (4, -2) and (4, 2) satisfy the given equation. $\\\\$This means that the x-value of $4$ is paired with two different y-values. $\\\\$Thus, the relation $x=y^2$ is not a function.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.