How To Plot Transfer Functions In Matlab?

How can I plot this state space like the graph I attached by using tf() and step() command? Thank you!

I2/E0=1/(s³+s²+3*s+1)

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Try these codes below please;

clc; clear; close all;

numerator = 1;
denominator = [1,1,3,1];
sys = tf(numerator,denominator);

yyaxis left

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