Find the Solution for Two Equations by Finding Their Intersection

This Find the Solution for Two Equations by Finding Their Intersection video also includes:

Finding the solution through the intersection of two equations is one way to problem solve, but go further and set the equations equal to each other to check. Learners discover that the x-coordinate and the x they solved for have the same value. 

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Use the additional videos in the series that practice with solving systems of linear equations
Classroom Considerations
  • The opening statement may confuse some learners, but it is discussed a few slides later
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Pros
  • Provides a way for the learners to check their work
Cons
  • The narrator goes through some steps without explaining
  • Doesn't solve for the y-coordinate when setting them equal to one another
Common Core