The sales of digital cameras (in millions of units) in yeartis given by the function

f(t) =3.06t+6.83(0t3)

wheret= 0 corresponds to the end of 2001. Over that same period, the sales of film cameras (in millions of units) is given by

g(t) =1.75t+16.58(0t3).

(a) Show that more film cameras than digital cameras were sold in 2001.

digital cameras _______

millionfilm camerasmillion _______

(b) When did the sales of digital cameras first exceed those of film cameras?

_______