Solution 12017: Blank Screen When Displaying a Graph on the TI-83 Family or TI-84 Plus Family Graphing Calculators.
Why do I get a blank screen when I try to display a graph on my TI-83 or TI-84 Plus Family calculator?
If a blank screen is displayed when graphing a function, it may be that the Window settings on the calculator are not appropriate for the function being graphed.
The ZoomFit command allows the calculator to set the Window settings so that the function can be displayed properly.
To use the ZoomFit command:
• Enter the function in the Y= Editor.
• Press [ZOOM] and Scroll to 0:ZoomFit.
• Press [ENTER].
Please see the TI-83 family and TI-84 Plus family guidebooks for additional information.