Help. Plot graph calculation

Hello, I really need help, I need calculate this graph on matlab and I really dont know how, please help me someone

Answer 1

[Matt J]

You mean, how to plot the triangle? You can do,

x=linspace(0,3,1000);
y=(1-abs(x-1));
y=y.*(y>=0);

plot(x,y)

Answer 2

[Star Strider]

A somewhat more analytic representation —

x = linspace(-1, 3, 250);
y = (x).*((x >= 0) & (x < 1)) + (2-x).*((x >= 1) & (x < 2));

figure
plot(x, y)
grid
ylim([0 2])

This can then be separated into its component parts, if necessary —

y1 = (x).*((x >= 0) & (x < 1));

y2 = (2-x).*((x >= 1) & (x < 2));

.