Intermediate Algebra (6th Edition)

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

Chapter 3 - Section 3.1 - Graphing Equations - Exercise Set: 94


The line is tilted downward (meaning that the line has a negative slope) to model the object's depreciation.

Work Step by Step

The line has a negative slope, meaning that the y-coordinate decreases as the x-coordinate increases. This accurately models the object's depreciation in value. As the x-coordinate increases, the y-coordinate (which measures the object's value at a given time) decreases. In other words, after each year, the object loses more and more value.
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