Visual Basic Express 2010 Grapging Calulator

Hello,

I am working on a school project that requires me to make a graphing calculator in Visual Basic Express 2010. I have been searching the internet for a few days and have not found the solution to my problem. I have come to the point where i am able to generate the x-y coordinates from any given function. The x values go from -10 to +10. The only thing i need to do now is make the visual graph work. I have not been able to figure out how to create the cartesian plane, and how I will make the graph on the plane.

Thanks