Find the critical points of the autonomous differential equation Then analyze the sign of f(x) to determine whether each critical point is asymptotically stable or unstable. You should sketch a phase line when you do this. value stability' smallest critical point |:| |:| largest critical point |_| |_| (Enter "S" or "U" to indicate asymptotically stable or unstable for each critical point.) Finally, solve the differential equation with initial condition z(0) = 5