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: 16


$y$ does not vary directly with $x$.

Work Step by Step

Find $\frac{y}{x}$ for each ordered pair. $\frac{y}{x}=\frac{-6}{-1}=6$ $\frac{y}{x}=\frac{3}{2}=1.5$ $\frac{y}{x}=\frac{12}{5}=2.4$ $\frac{y}{x}=\frac{24}{9}=2.67$ The ratio $\frac{y}{x}$ is not the same for all data pairs. So $y$ does not vary directly with $x$.
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