Solution 12645: Graphing a Function on the TI-80 and TI-81.
How can I graph functions using the TI-80 or TI-81?
The TI-80 has been discontinued. When upgrading, consider the TI-73 Explorer™. The TI-73 Explorer is completely compatible with curricular materials for upper elementary through lower middle grades, from fractions through pre-algebra.
Follow these steps to graph a function using the TI-80 or TI-81:
• Press [Y=].
• Enter the function.
• Press [ZOOM] and select the appropriate zooming option, depending on the function being graphed.
Example: Graph y=sin x
• Press the [Y=] key.
• Press the [SIN] key and then the [X|T] key to input the x.
• Press the [ZOOM] key.
• Select 7:Trig.
Please see the TI-80 and TI-81 guidebooks for additional information.