Unit 3  Objective 3  Rectangular Coordinate Systems
A graph gives us a picture of an equation. By looking at a graph, we can get a better idea of what we can expect an equation to do. To get a graph in a plane, we need two lines. The point of intersection is called the origin. The horizontal line is called the xaxis and the vertical line the yaxis. This is called the rectangular coordinate system.
Examples:

Unit 3 Outline // Course Outline // Home Page
Copyright © 1996 by B. Chambers and P. Lowry. All Rights
Reserved.