Graphing an inequality on the TI-83

Note that the TI-83 and the TI-83 plus have slightly different keys. This page uses the keys associated with the TI-83. The differences are that the TI-83 key is replaced by the TI-83 Plus key, and the TI-83 key is replaced by the TI-83 Plus key.

The graphical solution to Example 14 Chapter 1 Section 2 of the text is not quite as simple to construct as one might hope. That example uses the problem 5x + 2 < x – 6 The solution shown in the text involves graphing each side of the inequality as a function, and then comparing the two function graphs. This page starts by constructing that solution. Then this page goes on to demonstrate graphing the entire inequality exactly as it is given. Below is a sequence of steps needed to generate that graph on a TI-89 Note that the graph in the text is from a TI-86, not an 89. Therefore, the graph produced here will be slightly different.

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