Equations of a Line

Each form of a linear equation has its purpose — pupils just have to find it. Building on the previous lesson in the series, learners examine point-slope and standard form. Using point-slope form, pupils write the equation of a line, then manipulate the equation to write it in standard form. 

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CCSS: Adaptable
Instructional Ideas

  • Challenge your classes to find their own method of writing an equation of a line when given a point and a slope, and to derive the point-slope equation using their methods
  • Use the practice problems as board work and look for misconceptions 
Classroom Considerations

  • In a previous lesson in this series, learners wrote linear equations using slope-intercept form
Pros

  • Offers examples and practice problems that span the various forms of linear equations
Cons

  • Missing application problems that give the components of the equation's meaning
Common Core