Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.1 - Linear Equations in Two Variables - 2.1 Exercises - Page 170: 88a

Answer

The sales increased the most between 2014 and 2015. --- The sales increased the least between 2013 and 2014.

Work Step by Step

greatest increase = largest slope. $(14,182.20), (15, 233.72)$ $m_{1}=\frac{233.72-182.20}{15-14}= 51.52$ --- least increase = smallest slope $(13,170.91), (14, 182.20)$ $m_{2}=\frac{182.20-170.91}{14-13}= 11.29$
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