Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations in Two Variables - Exercise Set - Page 214: 92a


income constantly decreased while expenditure constantly increased

Work Step by Step

The negative slope of the income equation ($m=-95$) shows that the income constantly decreased from $2006$ to $2009.$ The positive slope of the expenditure equation ($m=285$) shows that the expenses constantly increased from $2006$ to $2009.$
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