10. The graph of f(x) is shown below. a) Determine: i. the intervals of increase and decrease; ii. the x -coordinate for all local extrema; iii. the intercepts. b) Draw the graph of f'(x). y fix) H11. A ball is projected upward from the ground. The velocity vs time graph is shown below. a) What is the initial velocity of the ball? b) How long does it for the ball to reach its maximum height? 20 v (m's) (0,19.6) t