Texas Instruments TI-83 PLUS - Manual (Page 134)

TI-83 Plus Function Graphing 131
Graphing a Family of Curves
If you enter a list (Chapter 11) as an element in an expression, the
TI-83 Plus plots the function for each value in the list, thereby graphing a
family of curves. In Simul graphing-order mode, it graphs all functions
sequentially for the first element in each list, and then for the second,
and so on.
{2,4,6}sin(X) graphs three functions: 2 sin(X) , 4 sin(X) , and 6 sin(X) .
{2,4,6}sin({1,2,3}X) graphs 2 sin(X) , 4 sin(2X) , and 6 sin(3X) .
Note: When using more than one list, the lists must have the same dimensions.