i want two responce on same plot

i want both step fuction on same plot with different colors
clc
clear all
s=tf('s')
t=(1*10^4)*s+(3*10^5)
y=s^5+98*s^4+2194*s^3+3655*s^2+107100*s+3*10^5
g= t/y
a=(1.2*10^4)*s+(2.7*10^5)
b=s^5+98*s^4+2194*s^3+3655*s^2+107100*s+2.7*10^5
c= a/b *exp(-10*s)
figure
subplot(1,2,1)
hold oon
% title('approximate responce')
step(g)
title('approximate responce')
grid on
subplot(1,2,2)
step(c)
title('approximate responce')
grid on
what command should be used

 采纳的回答

Try
figure
hold on
step(g, 'r')
title('approximate responce')
step(c, 'g')
grid on
legend('step(g)', 'step(c)')
or just simply
step(g,'r',c,'g')

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