Math A

Graphing Systems of Inequalities

 

If you can graph an inequality, you can graph a system of inequalities!

Simply graph each inequality separately on the same set of axes.  The area where the shadings overlap is the solution to the system of inequalities. 

 

Graph a System of  Inequalities
1.  Graph each inequality separately.  The directions for graphing inequalities can be found in "Graphing Inequalities".

2.  The solution to the system, will be the area where
the shadings from each inequality overlap one
another.

Graph the following  system of inequalities 

 

 

Graph the system

 The test point was (0,0).

0 < 2(0)-3  False

0 (-2/3)0+2 False

The solution, S, is where the two shadings overlap one another.

 

How to use your
TI-83+ graphing calculator  with systems of inequalities.
Click calculator.

 


  

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Roberts