The table below shows the value of a car in the years after it was purchased.
x (age of the car in years)
y (value of the car in dollars)
x: 2, 4, 6, 8, 10, 12
y: 34000, 29400, 25800, 23400, 20300, 3400
The scatterplot above shows this data along with the regression line. Use the regression line to answer the following questions:
(a) What is the value of the car when it is 9 years old?
(b) What was the value of the car when it was purchased (0 years old)?
(c) When finding the purchase price of the car, did you use interpolation or extrapolation?
interpolation
neither
both
extrapolation