The population of Metropolis was 4 million at the start of 2000 and can be given by the function P(t) = 4e^0.045t where t is time in years since 2000 and P(t) is in millions. By how much is the population accelerating or decelerating in 2020?
a. The population is decelerating by 0.02 million per year per year.
b. The population is accelerating by 0.44 million per year per year.
c. The population is accelerating by 0.02 million per year per year. d. None of these e. The population is decelerating by 0.44 million per year