The equation$\displaystyle P_n_+_1 = rP_n(1-P_n/C) -k $ may be considered a density - dependent population model with constant harvesting. If the growth rate is r = 3 and the carrying capacity is C = 6000, what is the largest number k that could be harvested each generation so that the population has a stable positive equilibrium, and so may not become extinct. I thought you needed to differntaite it but this would get rid of k?