Next to the + below, enter a function. For example, 3x+2.[br][br]Click on the graph and edit its properties. For example, change its color and thickness. What else can you change?[br][br]Experiment with other functions.[br]

In the window below, try some of GeoGebra's built-in commands. For example:[br][br]CompleteSquare(f)[br]Factor(f)[br]Expand(g)[br][br]Then experiment by editing the functions of any of the above.