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Systems of Equations and Inequalities



What is a system of equations?  It is a collection of two or more equations with the same solution (common point) to both equations. The solution to a system of equations is the common solution (common point) to both equations. 

When do we use a system of equations?  Typically, it used when there is more than one unknown quantity and you want a specific amount for each quantity. 

3.3.1 Introduction to a system of equation: 
3.3.1 Determine if a point is a solution to a given system of equation
3.3.1 Solve a system of equation by graphing
3.3.1 Solve a system of equation by substitution
State the Number of Solutions to a system of equations
3.3.2 Using Linear Combination: to Solve Systme of Linear Equations (typically used when both of the equations are in standard form)
3.3.2 Systems of Equations with three variables (honors)
Equivalent Systems of Equations:

6-4 Mixed Review
3.3.4 Graphing Linear Inequalities
Determine if a point is a solution to a system of inequalities
Graphing a system of inequalities
Graphing a system of inequalities with three or more inequalities
Review
Cumulative Review WS