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. 

Concepts

point-slope form, linear equations, linear equations writing, slope, y-intercepts, standard form

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Additional Tags

math

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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

8.F.A.3 8.F.B.4