Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - 5-2 Direct Variation - Practice and Problem-Solving Exercises - Page 306: 46



Work Step by Step

Since we know that in a direct variation the ratio of yx is constant, lets divide the two y-coordinates with their respective x-coordinates and set them equal to each other: 3/−5=−4.8/x (Cross Multiply) 3x=24 (Divide both sides by 3) x=8
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