Continuous-Time System:
a1 = 13, a0 = 11, b1 = -9, b0 = 2, 

Your excitation signal x(t) consists of straight lines connecting these points.
It has been zero up until the first time and is zero after the last time.

t = 4.19494, x(t) = 0
t = 4.19494, x(t) = -14
t = 6.06111, x(t) = -14
t = 6.06111, x(t) = 8
t = 7.60822, x(t) = 8
t = 7.60822, x(t) = -4
t = 7.85203, x(t) = -4
t = 7.85203, x(t) = 0
t = 8.76399, x(t) = 0
t = 8.76399, x(t) = 0
t = 13.9821, x(t) = 0

Discrete-Time System:
a0 = -6, a1 = 5, b0 = -16, b1 = 9, 
0 <= n < 3,  x[n] = 0
3 <= n < 7,  x[n] = -4
7 <= n < 14,  x[n] = 7
14 <= n < 16,  x[n] = -9
16 <= n < 30,  x[n] = 0

x[n] has been zero up until the first time and is zero after the last time.