Texas Instruments TI-83 PLUS - Manual (Page 121)

TI-83 Plus Function Graphing 118
Setting the Graph Style
To set the graph style for a function, follow these steps.
1. Press o to display the Y= editor.
2. Press † and } to move the cursor to the function.
3. Press | | to move the cursor left, past the = sign, to the graph style
icon in the first column. The insert cursor is displayed. (Steps 2 and 3
are interchangeable.)
4. Press Í repeatedly to rotate through the graph styles. The seven
styles rotate in the same order in which they are listed in the table
above.
5. Press ~ , } , or † when you have selected a style.