1. The problem statement, all variables and given/known data y'=(1-y)(3-y)(5-t) 2. Relevant equations find equilibrium solutions of ODE and determine their stability 3. The attempt at a solution equilibrium solutions are y = 1 and y = 3, I'm not sure how to determine their stability without some form of a slope field, is it possible to do so without one if so how? thanks!