Systems of Equations and Inequalities

Testing a Possible Solution to a System of Equations

Solving a System of Linear Equations by Graphing

Determining the Number of Solutions to a System of Equations

Determining if a System is Inconsistent or Dependent

• Inconsistent means the lines are parallel and therefore No Solution
• Dependent means the lines are the same and therefore Infinite Solutions

Solving a System of Equations Using Substitution

Intuition Behind the Process of Elimination

Solving a System of Equations by Elimination (given opposites)

Solving a System of Equations by Elimination (not given opposites)

Checking Solutions to Linear Inequalities

Introduction to Graphing a Linear Inequality with Examples

Graphing a Two-Variable Linear Inequality