Solving Systems of Equations by Graphing
Concept

Dependent System

A dependent system is a system of equations with infinitely many solutions. Consider the following linear system. 2y=4x-4 y=2x-2 To find the number of solutions, both lines of the system can be graphed on the same coordinate plane.

The lines overlap each other. Therefore, the system has infinitely many solutions. This means that this is a dependent system.

Exercises