The table shows the mileages x (in thousands of miles) and the selling prices y (in thousands of dollars) of several used automobiles of the same year and model. a. Use a graphing calculator to find an equation of the line of best fit. b. Identify and interpret the correlation coefficient. c. Interpret the slope and y-intercept of the line of best fit. d. Approximate the mileage of an automobile that costs $15,500. e. Predict the price of an automobile with 6000 miles.