Plotting lines on the same graph

I am srtuggling with writing a code that plots the graph as shown below. What should I do here to plot the same?

Answer 1

[KSSV]

x1 = 0 ; y1 = 0 ;
x2 = 1:10 ; y2 = zeros(size(x2)) ; 
x3 = zeros(1,10) ; y3 = 1:10 ;

figure
hold on
plot(x1,y1,'-*b') ;
plot(x2,y2,'r')  ;
plot(x3,y3,'m') ;
axis([-1 10 -1 10])
legend({'x(t=0)=(0,0,0)','x(t=0)=(1,0,0)','x(t=0)-(0,1,0)'})