Circles

Identifying the center and radius to graph a circle given its equation in standard form (1 of 6)

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Identifying the center and radius to graph a circle given its equation in general form: Basic (2 of 6)

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Writing the equation of a circle centered at the origin given its radius or a point on the circle (3 of 6)

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Writing an equation of a circle given its center and radius or diameter (4 of 6)

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Writing an equation of a circle given its center and a point on the circle (5 of 6)

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Writing an equation of a circle given the endpoints of a diameter (6 of 6)