Really, I think you can solve your problem by reading the documentation for quiver() more carefully.
doc quiver
The first two arguments specify the spot where each vector will begin. The next two specify the length of each component.
x_start = 1;
y_start = 2;
x_length = 7;
y_length = 3;
figure
scale=0;
quiver(x_start,y_start,x_length,y_length,scale); % Set scale==0, to prevent auto-scaling. See documentation.
For your real plot, x_start etc are going to be column vectors with your actual data.