A linear system has the system response function H(s)= -7/(s+4)
a) What is the order of this system?
b) Is this system stable? How do you know?
c) Find the output y(t) in response to the input x(t) = 6 u(t), where u(t) is the unit step function.
d) Find the output y(t) in response to the input x(t) = δ(t)