Answer
$\$10$ 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.
