One of the many methods of solving quadratic equations is graphing. A video lesson first demonstrates graphing a quadratic function using an input-output table. After graphing the parabola, the instructor makes the connection between the solutions of the equation and the x-intercepts of the graph.

Concepts

graphing quadratics, solving quadratics, quadratic equations, quadratic functions

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Pose the video as a resource for those needing additional instruction
• Follow the lesson with practice solving quadratic equations by graphing

Classroom Considerations

• Assumes previous experience with graphing quadratic functions

Pros

• Offers several examples with both integer and decimal solutions
• Emphasizes the relationship between x- and y-values of the graph and the equation

Cons

• None

Common Core

SL.8.2 SL.9-10.2 SL.11-12.2 RST.6-8.7 RST.9-10.7 RST.11-12.7