Answer
dollars per mile
Work Step by Step
To find the average rate of change, divide the cost by the distance flown:
Average Rate = $\dfrac{300\text{ dollars}}{150 \text{ miles}}=2 \text{ dollars per mile}$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 3 - Introduction to Graphing - 3.4 Rates - 3.4 Exercise Set - Page 185: 7
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