MATLAB: How can i plot transfer function with step signal input

Question

Hello, I have this transfer function:

sys = tf([2],[1 2]) G(s)

And this is my step input signal:

R(s)= 2/s

How can i combine R(s) and G(s) and plot this.

When I write this in Matlab i can plot only the transfer function withouz my step input singal:

sys = tf([2],[1 2]) G(s)

step(sys)

stepinfo(sys)

Answer 1

You can multiplythem together and then use the impulse() function

s = tf('s');
G = 2/(s+2);
R = 2/s;
sys = G*R;
impulse(sys)