Explore a standard method to graph a circle. Given the standard form of the equation of a circle, the segment of a basic geometry playlist shows how to graph the circle. The resource works examples of graphing a circle, finding the equation from a graph, and determining whether a point is on the circle.

Concepts

circles, equation of a circle, standard form, graphing, graphing conic sections

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Additional Tags

math

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Instructional Ideas

• Lead a discussion on how to determine whether a point is inside or outside a circle

Classroom Considerations

• Assumes individuals know how to determine whether a point is a solution to an equation
• It is helpful if pupils recognize that adding a positive is the same thing as subtracting a negative

• This video is hosted on YouTube

Pros

• Contains a link to other resources on graphing circles, including interactives
• Shows the algebraic steps needed in the examples

Cons

• None

Common Core

HSG-GPE.A.1 MP1 MP2