Matlab - Dibujar recta entre dos puntos

P1=[0 0];P2=[2 2];

 plot([P1(1) P2(1)],[P1(2) P2(2)],'r')

x1=0;   y1=0;

x2=2;   y2=2;

X=[x1 x2];

Y=[y1 y2];

line(X,Y,'LineWidth',5)

hold on

plot(X,Y,'ro','LineWidth',5)

x1=0;   y1=0;

x2=2;   y2=2;

X=[x1 x2];

Y=[y1 y2];

line(X,Y,'LineWidth',5)

hold on

plot(X,Y,'ro','LineWidth',5)

clc

clear all

close all

P1=[0 5];P2=[3 5];

plot([P1(1) P2(1)],[P1(2) P2(2)],'r')

hold on

P3=[3 0];P4=[3 5];

plot([P3(1) P4(1)],[P3(2) P4(2)],'b')

hold off