Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - Chapter Review - Page 354: 12



Work Step by Step

The function form of a direct variation is $y=kx$. $8=k(-4)$ - Substitute $x=-4$ and $y=8$- $8=-4k$ $-2=k$ The direct variation equation would be $y=-2x$ $y=(-2)(7)$ when $x=7$ so therefore $y=-14$
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.