3. Stopping Distance The table below shows the average stopping distance D, in feet, for a car on dry pavement versus the speed S of the car, in miles per hour. S = speed (mph) 15 25 35 40 60 75 D= stopping distance (feet) 44 85 136 164 304 433 a. Find a model of stopping distance as a power function of speed. b. If speed is doubled, how is stopping distance affected? c. Plot the data and the power model on the same screen.