Use the sketch of s = f(t) on Figure 1 to approximate each of the following.
(a) f'(2)
(b) f'(6)
(c) Vavg on [3, 7]
(d) d/dt f(t2) at t = 2
(e) d/dt [f2(t)] at t = 2
(f) d/dt (f(f(t))) at t= 2