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 - Practice and Problem-Solving Exercises - Page 71: 15


This is not a direct variation equation. ($y$ does not vary directly with $x$).

Work Step by Step

Direct variation can be represented as $y=kx$, where k is the constant of variation. This equation cannot be represented as $y=kx$ because it has a y-intercept, so this is not a direct variation equation.
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