need help calculating point based on angle

[sirzooass]

Does anyone know how to find out what x is in the picture above. I've been trying for hours to figure it out but I'm apparently a math idiot!

Any help would be much appreciated

[sirzooass]

I found out the answer so here it is in case anyone else needs help. I yanked the image from my server and attached it...

var ballXend = ballXstart + ((ballYstart-ballYend) * Math.tan(aimAngle/180*Math.PI));