Graphing {Completing the Square}
Move the sliders to enter your equation in the general form.
To see the equation in vertex form check the Complete the Square Form Text.
Check the Max/Min Point to display and find the vertex.
Check the Line of Symmetry to find the axis.
This applet can be used by teachers in a demonstration mode in the classroom or teachers can have students load it on their own computers as a worksheet to be completed for a grade.