Graphical and textual operation of drawing cubic parabola with geometric sketchpad

Establish a coordinate system. In order to facilitate the viewing of function images, the coordinate system that comes with the system is not used. Click [Custom Tools] on the left sidebar with the mouse, and select [Classic Coordinate System] - [Flying Fox | Cartesian Coordinate System] in the pop-up tool menu. Click twice on the drawing board, and then click [Initial Coordinates] to establish the coordinate system as shown in the figure below.

Create new parameter a. Click the [Data] menu in the upper menu bar, select the [New Parameter] command in the pop-up drop-down menu, and in the pop-up dialog box, the parameter name is a and the value is 1. Click OK to create a new parameter a.

Draw a cubic parabola. Click the [Draw] menu in the upper menu bar, select the [Draw New Function] command in the pop-up drop-down menu, and click [Parameter a,] [*], [x], [^], [3] in the pop-up dialog box, Then click OK.

After following the above steps, the image of the cubic parabola will be automatically drawn in the coordinate system, as shown in the figure.

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