Does it have to be Maple? GeoGebra is free software, and if I'm understanding your problem correctly, it's pretty easy to make it do what you need.
Originally Posted by jennifer1004
If you have to use Maple, try the arrow command in the plots package:
If you want to specify the start and end of the arrows, use two Maple vectors. e.g. from (1,3) to (-2,5):
I'm a math major, and to keep in practice with creating professional looking math documents, I type all of my homework in LaTeX. I use GeoGebra and a screen capture utility for many of my illustrations.
PS Can you tell that I like GeoGebra?