(3) The number of yeast cells in a laboratory culture increases rapidly initially but levels off eventually. The population is modeled by the function _ a _ 1 + be'mt f (t) Where t is measured in hours. At time t : 0 the population is 25 cells and is increasing at a rate of 14 cells/ hour. (a) [8 pts] Find the values of a and b. (b) [5 pts] According to this model, What happens to the yeast population in the long run