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

Published by Pearson

# Chapter 3 - Introduction to Graphing - 3.5 Slope - 3.5 Exercise Set: 20

$\$10$per year #### Work Step by Step In the year 2009, the median national daily private room rate among nursing homes was$\$220$. In 2011, the median national daily private room rate among nursing homes was $\$240$. To find the rate of change in the daily cost of private rooms, use: rate of change =$\dfrac{240-220}{2011-2009}=\dfrac{20}{2}=10$dollars per year Thus, the rate of change in the median national daily private room rate among nursing homes is$\$10$ per year.

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