Take the mystery out of linear functions. Provided an image with no scale, learners guess where the line that connects them might cross the y-axis. After providing the coordinates of the points, they realize scale is an important characteristic of the graph. They then make calculations to determine the location of the y-intercept.

Concepts

slope, y-intercepts, linear equations, linear equations writing, distance

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Additional Tags

math

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Instructional Ideas

• Include during a unit on linear equations
• Create a document for pupils to provide their solution methods and solutions

Classroom Considerations

• Uses prior knowledge of writing linear equations

Pros

• Comment section provides additional ideas for how to use the materials
• Lets users download materials for use offline
  

Cons

• None

Common Core

8.F.A.2 8.F.A.3 8.F.B.4 8.F.B.5