The number of yeast cells in a laboratory culture increases rapidly initially but levels off eventually. the population is modeled by the function n = f(t) = a 1 + be−0.8t where t is measured in hours. at time t = 0 the population is 10 cells and is increasing at a rate of 7 cells/hour. find the values of a and b. a = 1 -25 b = 2 -3.5 according to this model, what happens to the yeast population in the long run? the yeast population will grow without bound. the yeast population will stabilize at 80 cells. the yeast population will stabilize at 40 cells. the yeast population will stabilize at 7 cells. the yeast population will shrink to 0 cells.