clc
clear
disp('Zhoria Renfus')


x1 = 0:0.01:4;
x2 = 4:0.01:8;
x3 = 8:0.01:12;

y1 = 4 * (x1)
y2 = 1 * (x2)
y3 = -2 * (x3)

title('Plot of a Function');
xlabel('x');
ylabel('f(x)')