Question 8 (8 points) 5) For a certain individual, the volume (in liters) of air in the lungs during 2 respiratory cycles is given in chart below. Volume Of Air in Lungs 0.6 Vollume (liters) 0.4 0 0 10 Time (sec) a) What is the minimum degree of a polynomial function that could be used to model data given above? points) b) Would the leading coefficients be positive or negative (4 points)? Blank # 1 A Blank # 2 Question 6 Question 9 (6 points) 6) The following equation models a runner's speed f(x) (in ft/sec). x represents time in seconds after the st. of a race (round all answers to the nearest tenth). F(z) = 101-10 Approximate the runners speed after 6 seconds. (3 points) Approximate the runners speed after 100 seconds. (3 points)