
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 GraphSteps in Defining
a Graph
Exploring a
Graph