The population (in thousands) of the city is given by
P(t)=100[1+(0.04)t+(0.003)t^2]
with t in years and with t=0 corresponding to 1980.
a) What was the rate of change of P in 1986?
b) What was the average rate of change of P from 1983 to 1988?
math---differentiation
2013-10-07 12:38 am
回答 (2)
2013-10-07 12:51 am
2013-10-07 12:47 am
Try to find dP(t)/dt and set t = 6 into it.
Try [P(8) - P(3)] / (1988 - 1983)
Try [P(8) - P(3)] / (1988 - 1983)
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