Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 9 - Section 9.4 - Variation and Problem Solving - Exercise Set: 1

Answer

The constant of variation is $\frac{1}{5}$. The direct variation equation is $y=\frac{1}{5}x$.

Work Step by Step

$y=kx$ $y=4; x=20$ $4=k(20)$ $\frac{4}{20}=k$ $\frac{1}{5}=k$ The constant of variation is $\frac{1}{5}$. The direct variation equation is $y=\frac{1}{5}x$.
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