8. In 1980, the population of Littletown, Ontario, was 1100. After a time t, in years, the population was given by p(t) = 2t² + 6t + 1100. a. Determine p'(t), the function that describes the rate of change of the population at time t. b. Determine the rate of change of the population at the start of 1990.

Fig: 1

Fig: 2

Fig: 3