Google Classroom
GeoGebraGeoGebra Classroom

Graphing Perspective

The  Graphing Perspective includes the  Algebra View and the  Graphics View. By default, the  coordinate axes are shown and the Graphics View Toolbar is displayed at the top of the GeoGebra Classic app, with the  Undo / Redo buttons in the top right corner.

The Algebra View

In the  Algebra View you can directly enter algebraic expressions using the Input Bar. After hitting the Enter key your algebraic input appears in the  Algebra View. Note: At the same time, the corresponding graphical representation is automatically displayed in the  Graphics View. Example: The input gives you the linear equation in the  Algebra View and the corresponding line in the  Graphics View.

Task

Get in touch with the Graphing Perspective by following the instructions below.

Instructions

1.Toolbar ImageClick into the Input Bar, enter and press Enter.
2.Toolbar ImageActivate the Move tool and select the function in the  Graphics View. Open the  Style Bar and select to unfix the function and to be able to drag the function. Explore how the parameters of the function in the Algebra View change when dragging f(x).
3.Enter the quadratic function into the Input Bar and press Enter.
4.Enter into the Input Bar and press Enter.
Hint: This command yields the intersection points of the two functions. The points are displayed in the  Graphics View as well as in the  Algebra View.
5.Toolbar ImageSelect the Move tool and drag the linear function. How do the intersection points change?

Try it yourself...

Hiding Mathematical Objects in the Algebra View

If you want to hide the algebraic representation of an object in the Algebra View, you may specify the object as an Auxiliary Object. Open the tab Basic of the Porperties Dialog and check Auxiliary Object. By default, Auxiliary Objects are not shown in the Algebra View. You can change this setting by selecting Auxiliary Objects from the Context Menu (right-click or Mac OS Ctrl-click), or by selecting on the appropriate icon in the Algebra View Style Bar.