7-1B systems of linear equations graphing.ppt - Chapter 7 – Linear Systems •Systems of Linear Equations •Solving Systems of Equations by Graphing

# 7-1B systems of linear equations graphing.ppt - Chapter 7...

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1 Chapter 7 – Linear Systems Systems of Linear Equations Solving Systems of Equations by Graphing Solving Systems of Equations by Substitution

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Solving Systems by Graphing 11/15/19 Algebra 1 Objective: solve a linear system by graphing when not in slope-intercept form. TSW solve a system of two linear equations in two variables algebraically and are able to interpret the answer graphically. Students are able to solve a system of two linear inequalities in two variables and to sketch the solution sets.
Yesterday’s Homework 1. Any questions? 2. Please take out your homework so I can come by to check for completion. Make sure the homework is 100% complete.

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Warm-Up 4 5 1. 2 7 y x y x  Solve the system by graphing. 4 1 m 2 1 m  2, 3 5 b  7 b 3 3 2 2. 1 5 2 y x y x  3 2 m 1 2 m  4, 3 3 b 5 b 
Systems of Equations A set of equations is called a system of equations . The solutions must satisfy each equation in the system. If all equations in a system are linear, the system is a system of linear equations , or a linear system .

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6 Systems of Linear Equations : A solution to a system of equations is an ordered pair that satisfy all the equations in the system. A system of linear equations can have: 1. Exactly one solution 2. No solutions 3. Infinitely many solutions
7 Systems of Linear Equations : There are four ways to solve systems of linear equations : 1. By graphing 2. By substitution 3. By addition (also called elimination) 4. By multiplication

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8 Solving Systems by Graphing : When solving a system by graphing: 1.
• Fall '16
• SANDRA MARSH

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