The following table represents the price of a car over the years.

age (years), x l price of car, y

0 l 45,000

1 l 35,500

3 l 24,500

4 l 13,000

5 l 10,700

plot the points

a) determine a trendline, if possible for the points above.

b) find the price of the car when it is 7 years old