3.1 - Solve Systems of Linear Equations by Graphing

To solve a linear system using a graph or a table.

​Solution

A solution to an equation is the value of the variable that makes the equation true.

​In this unit we are going to be solving systems of linear equations.

A system of equations is two or more equations containing two or more variables.

​So can a system of equations have a solution?

Yes!

The set of all points that satisfy each equation. In most cases this is the one point that makes both equations true.

​We will learn three methods to solve systems of linear equations.

The first is solving by graphing. We will graph both equations on the same coordinate plane. The point where they cross (called "the point of intersection") is the solution to the system.