Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 8 - Section 8.5 - Graphs of Quadratic Functions - 8.5 Exercises - Page 548: 40

Answer

linear function; negative slope

Work Step by Step

Based on the given scatter plot, a linear function is appropriate to model the data on "Average Daily Volume of First-Class Mail." Since the data points decrease from left to right, then the slope of such linear model should be negative.
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