answer me

1. (a) 6pts] Find a Lyapunov function V(r, y) for the system t= -2r+ y + ry. (1) ( = -3y - 21-2r. Hint: you may try some V(r, y) as a linear combination of terms like s',y', s', A simple form will work. (b) 2pts] Is it possible that system (1) has a closed orbit? Explain why in one sentence