Answer
Direct variation
Work Step by Step
The data in the table do show direct variation, for with $\underline{all}$ data points, the quantity $\frac{y}{x}=-4$. Hence, the two quantities vary directly and follow the equation:
$$ y=-4x$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 2 Linear Equations and Functions - 2.5 Model Direct Variations - 2.5 Exercises - Skill Practice - Page 110: 33
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