Which statement about the equilibrium solutions of dydt=y(y−1)(y+2)\frac{dy}{dt} = y(y-1)(y+2)dtdy=y(y−1)(y+2) is correct?
y=0y=0y=0 is a stable equilibrium.
y=1y=1y=1 is an unstable equilibrium.
y=−2y=-2y=−2 is a stable equilibrium.
All equilibrium solutions are unstable.