A bungee jumper's height h (in feet) at time t (in seconds) is given in part by the data in the table: h(t) 0 200 0.5 187.88 1 163.98 1.5 132.94 2 100 2.5 70.2 47.62 3.5 34.9 4 32.97 4.5 41.09 5 57.11 5.5 77.92 6 100 6.5 119.98 7 135.11 7.5 143.64 8 144.93 8.5 139.49 9 128.75 9.5 114.8 10 100 (a) Use the data to estimate: h' (6.5) h(7) h' (7.5) (b) At which of these times is the bungee jumper rising most rapidly? at t 6.5 at t=7 at t 7.5