The linear autonomous systems:
(a) Have one equilibrium state
(b) Their behavior determines the qualitative behavior of the s-plane
(c) System behavior for small deviations about the equilibrium point may be different from the large deviation
(d) Both a and b
I have been asked this question in a national level competition.
This is a very interesting question from Liapunov’s Stability Criterion topic in section Liapunov’s Stability Analysis of Control Systems