Continuous-Time System:
a1 = 5, a0 = 19, b1 = -9, b0 = 8, 

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 = 1.46564, x(t) = 0
t = 1.46564, x(t) = -4
t = 3.07137, x(t) = -4
t = 3.07137, x(t) = 8
t = 3.16132, x(t) = 8
t = 3.16132, x(t) = -8
t = 3.32068, x(t) = -8
t = 3.32068, x(t) = 16
t = 4.81849, x(t) = 16
t = 4.81849, x(t) = -16
t = 7.35289, x(t) = -16
t = 7.35289, x(t) = 0
t = 16.1501, x(t) = 0

Discrete-Time System:
a0 = -14, a1 = 11, b0 = -2, b1 = 1, 
0 <= n < 9,  x[n] = 0
9 <= n < 18,  x[n] = 4
18 <= n < 19,  x[n] = -16
19 <= n < 20,  x[n] = -8
20 <= n < 32,  x[n] = 0

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