Well, you're one of the most intelligent people I know and it probably took you about 3 seconds to learn how to plot points on a graph. :-) One thing I neglected to mention in my explanation is that when the point is first plotted, one starts where the X-axis and Y-axis meet (at zero).
Thanks Woofer. I get it now. Quote:Remember when we used to plot points on a graph in geometry ? Not really...I dropped out of school kinda early