The Chang family is on
their way home from a
cross-country road trip.
During the trip, the
function
D(t) = 2,280 - 60t can be
used to model their
distance, in miles, from
home after t hours of
driving.
Find D(15) and interpret
the meaning in the context
of the probieu.
If DC) = 1,200, find the
value of ĉ and interpret its
meaning in the context of
the problem.