Introduction to Graphing Linear Equations in Two Variables

What You Will Learn to Do: Graph Linear Equations on the Coordinate Plane

The coordinate plane was developed centuries ago and refined by the French mathematician René Descartes. In his honor, the system is sometimes called the Cartesian coordinate system. The coordinate plane can be used to plot points and graph lines. This system allows us to describe algebraic relationships in a visual sense and also helps us create and interpret algebraic concepts.