Education Technology

Solution 27390: Dots or Lines Appearing on a Graph When Using a TI-83 Family, TI-84 Plus Family, or a TI-Nspire™ in TI-84 Plus Mode.

Why does my graph have lines or dots through the display on my TI-83 family, TI-84 Plus family, or TI-Nspire in TI-84 Plus Mode?

After graphing on the TI-83 family, TI-84 Plus family, or TI-Nspire in TI-84 Plus mode a series of dots or lines may appear through the display. The dots represent the graph's grid and when zoomed in to a smaller portion of the graph, can appear as solid lines. This option may be turned on or off by accessing the FORMAT menu.

As an example, graph Y1 = X^2 by doing the following:

• Press [Y=].
• In Y1, press [X] [x²].

• Press [ZOOM] [6].

• Pressing [ZOOM] [0] to fit the function properly on the screen.

To turn off the Grid, do the following:

• Press [2ND] [FORMAT].

• Press [↓] [↓].
• Press [ENTER].
• Press [GRAPH].

The dots or lines should no longer be displayed.

Please see the TI-83 Plus Family and TI-84 Plus Family guidebooks for additional information.

TI-Nspire handheld in TI-84 Plus mode users may refer to the TI-84 Plus family guidebook.