13. Graphing Inequalities. I will first describe the method for TI-83 Plus calculators that don't have the Inequalz application and the method for the TI-84 and TI-83 plus calculators that have the application. a) Write each equation in the y =mx + b format and enter them into the "Y=" positions. (Remember that you may need to change the direction of the inequality sign if you have to multiply or divide by -1 during the rearranging of the equation.) b) Shading of the graph is determined by the symbol to the left of the "Y=" entry. Using the left arrow, move the cursor all the way to the left of the Y= symbol. c) Pressing ENTER in that position will display different symbols. For < or <, press ENTER until the upright triangle is displayed. For > or >, press ENTER until the upside down triangle is displayed. d) After you have the correct symbol displayed, press ENTER to graph the inequality.
This is taken from the following site: www.angelfire.com...
Hope that helps. I haven't used a Texas Instruments calculator in ages! We played Tetris and Drug Wars on them in high school.
edit on 6-3-2012 by DaTroof because: broken spacebar