5.1 Areas and Distances 1.(4pts) Find the area under the graph off(x) = - x~ + 4 from x = - 2 to x = 2 a) Use 8 rectangles and right endpoints. b) Use 8 rectangles and left endpoints.2.[ni-pts] Speedometer readings for a motorcycle at 12-second intervals are given in th e table 3] Estimate the distance traveled by the motorcycle during this lime period using the velocities at the beginning of the time intervals. b] and another using the velocities at the end of the lime intervals. c] Are these upper and lower estimates? If not, why not