Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 5 - Polynomials and Factoring - 5.6 Factoring: A General Strategy - 5.6 Exercise Set - Page 345: 90

Answer

$$\frac{23}{4}$$

Work Step by Step

We use the end of 2009 as time equals zero. Thus, using the equation for slope, we find that the rate of increase is: $$ m=\frac{189-120}{12-0} \\ m=\frac{23}{4}$$
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