We can visualize an inequality of two variables on GeoGebra. For example, you can type the linear inequality [math]3x-y>4y+3[/math] in GeoGebra below.[br][br]But GeoGebra does not have a powerful computation engine like Mathematica. It has its limitations - it cannot visualize complicated inequalities like [math]\cos(xy)-y^2<3[/math]. [br][br][b][u]Classwork[/u][/b]: Besides linear inequalities, find out what other types of inequalities of two variables can be visualized in GeoGebra.[br][br]

The following is a GeoGebra applet about a linear programming problem.