Texas Instruments TI-83 Plus Manual Book page 3

What is Inequality Graphing?
The Inequality Graphing application for the TI-83 Plus gives you
new features for graphing equations and inequalities and
evaluating the relationship between them. Using the Inequality
Graphing application, you can
•
enter inequalities using relation symbols
•
graph inequalities and shade the union and intersection
regions
•
enter inequalities (vertical lines only) in an X=editor
•
trace points of interest (such as intersections) between
relations
•
store (x,y) coordinate pairs to lists for viewing and optimizing
functions for linear programming
Inequality Graphing is available in two different versions, English
only and international. The international version contains the
English version and also supports Dutch, French, German,
Portuguese, and Spanish. To run Inequality Graphing in a
language other than English, you must have the corresponding
language localization application installed and running on your
calculator. Language localization applications are available for
download free of charge in TI's online store at epsstore.ti.com.
Inequality Graphing for the TI-83 Plus Page 3