Answer: The house will be worth of $268000.
Explanation:
Since we have given that
Amount Cindy paid for bought a house in 1999=$218000
In 2006, Amount of house = $253000
First we will find the slope i.e "the rate of change"

So, the equation of slope will be

The house will be worth of in 2009 will be

Hence, the house will be worth of $268000.