Conics what is the formula for a circle

The video tutorial begins with a discussion on the vertex form of a parabola, explaining how to graph it using transformations. It then transitions to defining a circle, emphasizing that all points are equidistant from the center. The teacher introduces the distance formula to calculate the distance between two points and uses it to derive the equation of a circle, replacing the distance with the radius. The tutorial concludes with the formal definition of a circle's equation.

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