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 Move Graphics View 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.



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Many thanks to mathmagic and piman and to e.b.      LFS , Created with GeoGebra      Still testing - please write.