Create a linear equation for a problem when the intercept information is not given. The two-day lesson introduces the class to the point-slope form, which can be used for problems when the initial conditions are not provided. Pupils create linear equations using the point-slope form and convert it to slope intercept form to answer questions about the initial and other values.

Concepts

linear functions, linear equations, linear equations applications, function notation, point-slope form, word problems, slope, slope formula

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Additional Tags

math

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Instructional Ideas

• Provide a couple more examples of developing the point-slope form of an equation given two points
• Have teams create problems and share with other teams to work

Classroom Considerations

• The class should be comfortable working with the slope formula

Pros

• Includes handouts on which class members can do all their work
• Contains the answers and steps for the demonstration tasks

Cons

• There are slight typos in the handouts

Common Core

HSF-LE.A.2