Choose the version of the coordinate graph from the drop down menu.
Drag at least two points on to the coordinate plane.
Click . The points that may be selected will turn blue.
Click on two points. The points will turn red.
Click . A line is drawn containing the two red points.
Click on a black line to select the line. The line turns red. Enter the equation of the line in the Equation field or click to remove the line and the Equation field.
Click to remove the lines and points from the coordinate plane.