Algebra 2 Common Core

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

Chapter 2 - Functions, Equations, and Graphs - 2-2 Direct Variation - Lesson Check - Page 71: 3



Work Step by Step

We need to isolate y. We start by adding 5x to both sides to isolate $y$ and its coefficient. Then, we divide both sides by 4 to fully isolate $y$. We have: $4y=5x \\y=\frac{5x}{4} \\y=\frac{5}{4}x$ In a direct variation $y=kx$, the constant of variation is $k$, so the constant of variation is $\frac{5}{4}$.
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.