The health expenditures (in billions of dollars) for a certain country from 1990 to 2010 are given approximately by f (t) = 27e^0.106t, with time in years measured from 1990. Give approximate answers to the following questions using the graphs of f (t) and f′(t) shown in Fig. 3.

(a) How much money was spent in 2008?

(b) How fast were expenditures rising in 2002?

(c) When did expenditures reach $120 billion?

(d) When were expenditures rising at the rate of $20 billion per year?

Transcribed Image Text:

100 Y Figure 3 FEB y = f(t) 10 y = f'(t)