Solution 12097: Graphing Multiple Functions from the Home Screen on the TI-89 Family, TI-92 Family, or Voyage 200™ Graphing Calculators.
How can multiple functions be graphed from the home screen on the TI-89 family, TI-92 family, or Voyage 200 graphing calculator?
Multiple functions can be graphed from the home screen on the TI-89 family, TI-92 family, or Voyage 200 using the Store and Graph commands.
For example, to graph y=x, y=2x, y=3x from the home screen,
Store the functions that will be graphed to a variable
Use the graph command to graph the variable
Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information.