Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.1 - Linear Equations in Two Variables - 2.1 Exercises - Page 170: 87


$a.) m=135$ $b.) m=0$ $c.)m=-40$

Work Step by Step

$a.) m=135.$ The sales are increasing at a rate of 135 units per year. $b.) m=0.$ There is no change in sales during the year. $c.) m=-40.$ The sales are decreasing at a rate of 40 units per year.
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