%Niveen Bazaraa
%Brandon Harris
%Vladi Gergov
%ECE 460 Control Systems
%Lab 4
%File name  lab4_3

clear all
home
num4=[-.5 -2]
den4=[1 2]
t=[0:.001:4]';
transfer_function4=4*tf(num4,den4)
step_response4=step(transfer_function4,t);
plot(t,step_response4,'red')
xlabel('The t axis')
ylabel('The y axis')
title('The  4*unit step response')
grid on

hold on
load y3
tnew=[0:.01:1.55]';
plot(tnew,y3)