Inequalities on the Number Line - 0

Goal: Graph an inequality on the number line.

1. Type or paste an inequality in x in the box. Hit Enter. You can type <= for and >= for . Values on the red ray make the inequality "true".

Inequality:

Other examples:  x+3≤5,  2x+1>4,  3>=4x/5-11/5

2. To change the view, click on the Move tool and then click and drag the number line as desired.

• An open endpoint means NO "=" in the inequality.

3. Find the value of any point on the red ray. On a piece of paper, substitute this value for x into the inequality. The inequality should be "true".

4. Find the value of any point NOT on the red ray. On a piece of paper, substitute this value for x into the inequality. The inequality should be "false".

• To start over, enter a new inequality and hit Enter.

 Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now) Many thanks to mathmagic and piman and to e.b.      LFS , Created with GeoGebra      Still testing - please write.