Q3 (3 points) Suppose that a vehicle's velocity is given by the function y = to - 1 in hundreds of km/ hr, where t represents the time in hours, with t 6 0, 2) . For each of the following use a Riemann sum with 8 rectangles and right-hand endpoints. a) Approximate the vehicle's displacement over the two hours. b) Approximate the distance travelled by the vehicle over the two hours. c) Approximate the average velocity of the vehicle over the two hours