three link simulation problem

hello there,

im new in matlab and seek for help. i did some coding here :-

clear all;clc;clf;

hold on;

x2=5;

%for loop for i=5:9 x2=x2+0.5 plot([5, x2],[10,14], [10,5],[10,10], [10,10],[3,10],'marker','o','color','r'); axis ([0 25 0 25])

    hold off;
    pause(0.2);

end

i want the final coordinate end at (15,20) and all the line following it and make a straight line at the end. i'm totally blank here.may someone help me pls... thanks. i need it for my assignmnt.

thanks