Texas Instruments TI-83 PLUS - Manual (Page 556)

TI-83 Plus Activities 553
Box with Lid
Displaying and Tracing the Graph
Now that you have defined the function to be graphed and the window in
which to graph it, you can display and explore the graph. You can trace
along a function using the
TRACE
feature.
1. Press s to graph the selected function in
the viewing window.
The graph of Y 1 =(20 N 2X)(25 à 2 N X)X is displayed.
2. Press ~ to activate the free-moving graph
cursor.
The X and Y coordinate values for the position
of the graph cursor are displayed on the bottom
line.