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Increasing C from 0 to 1 translates the graph of the right-hand side function vertically upward by one unit. This shift causes the three equilibria to move: the two stable equilibria shift to the right, and the unstable equilibrium shifts to the left.

Conditions: The differential equation is $dz/dt = 4z - z^3 + C$.; C is changed from 0 to 1.

Increasing C from 0 to 1 translates the graph of the right-hand side function vertically upward by one unit. This shift causes the three equilibria to move: the two stable equilibria shift to the right, and the unstable equilibrium shifts to the left.

Conditions: The differential equation is $dz/dt = 4z - z^3 + C$.; C is changed from 0 to 1.