Not all systems have a single solution. To begin the video, the narrator reviews the different number of solutions possible with a system of linear equations. He continues with examples of solving systems of equations by graphing. Unlike the previously worked examples, the solutions for the examples have no or infinitely many solutions.

Concepts

graphing systems of equations, solving systems by graphing, systems of equations, systems of linear equations

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Additional Tags

math

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Instructional Ideas

• Have the class put in their own words when a system has one solution, no solution, or infinitely many solutions

Classroom Considerations

• Individuals should be comfortable changing equations into slope-intercept form
• Class members must know how to graph linear equations

• This video is hosted on YouTube

Pros

• Identifies the slope and y-intercept for each equation
• Uses colors to distinguish between the two equations and graphs

Cons

• None

Common Core

SL.9-10.2 8.EE.C.8.a 8.EE.C.8.b HSA-REI.C.6 MP1 MP5 MP6