Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 3 - Section 3.4 - Slope and Rate of Change - Exercise Set: 79

Answer

2006 to 2007

Work Step by Step

2002: 29.0 miles per gallon 2003: 29.5 miles per gallon 2006: 30.25 miles per gallon 2007: 31.0 miles per gallon 2008: 31.25 miles per gallon From 2002 to 2003, $\frac{29.5-29.0}{2003-2002}=\frac{0.5}{1}=0.5$. From 2006 to 2007, $\frac{31.0-30.25}{2007-2006}=\frac{0.75}{1}=0.75$. From 2007 to 2008, $\frac{31.25-31.0}{2008-2007}=\frac{0.25}{1}=0.25$. 2006 to 2007 has the greatest slope.
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