Graphs Graphs You may want to print this page or download it as a Word document. Introduction to Graphs.
Graphs are objects that are used in many different areas of math.
A graph is simply a collection of dots, called vertices, and lines that connect the vertices, which are called edges. The dots are called vertices, and the lines are called edges. The Definition of a Graph. This section shows how to precisely describe what a graph is. A graph is made up of two sets.