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 73: 54


Y is doubled, or multiplied by 2

Work Step by Step

1) The equation is $y=kx$ *Keep in mind, anything you do to the x, y gets affected as well. 2) $x$ is doubled. Substitute $2x$ to $x$ in the equation to obtain: $y=k(2x)=2kx$ The value of $y$ got doubled as well.
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