Question 9 (3 points) Use the following graph of f(x) to describe the behavior of f '(x). State where f '(x) is positive, negative, zero or not defined. 10+ it - 5 -4 -1 +Question 10 (3 points) Use the following graph of f '(x) to describe the behavior of f (x). State where f (x) is increasing, decreasing, does not exist or is flat. AY 207 16+ 12+ 8+ -5 -4 -3 -2 -1 -4+ -8+ 12+ -16+ 20 +Question 11 (3 points) Use the following graph of f '(x) to describe the behavior of f (x). State where f (x) is increasing, decreasing, does not exist or is flat. 40 + 32 + 24 16+ -5 -4 -3 -2 3 4 -16 24 32 40Question 12 {3 points} A person is standing and throws a ball into the air at time t = Us and from a height of two meters. The graph shows the velocity of the ball over time. The function shown is sit] = 2{t 3}. Describe the acceleration of the ball between t = Us and t = 6s. V 310 city (refs) Time (s)