Texas Instruments TI-80 Calculator User Manual


 
Function Graphing 4-3
To define a graph, you set the modes, enter and select the functions to graph,
and define the viewing window and the graphing format. Once you have defined
a graph, you can plot it, display it, and explore it.
There are six basic steps to defining a graph, although you
may not need to do all of the steps each time you define a
graph. The procedures are described in detail on the following
pages.
1. Set the mode to
FUNC
graphing (Chapter 1).
2. Enter or edit a function in the
Y=
list (page 4
-
5).
3. Select the
Y=
function you want to graph (page 4
-
8).
4. Define the viewing window (page 4
-
9).
5. Set the graphing format (page 4
-
11).
6. Deselect
STAT PLOTS
, if appropriate (Chapter 9).
Once you have defined a graph, you can display it and use
several tools on the TI
-
80 to explore the behavior of the
function or functions. These tools are described later in this
chapter.
Defining a Graph
Steps in Defining
a Graph
Exploring a
Graph