Suppose that in the year 2000, the cost of a compact car averaged $ 13100 and that in 2003, the cost averaged $ 15200. Assuming that the relationship between year tt and cost cc is linear, develop a formula for predicting the average cost of a compact car in the future measuring the variable tt as years since 2000. Be sure to use the lower case variables tt and cc.
What do you predict the average cost of a compact car will be in the year 2007?