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10 Terms
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Circle
The set of all points that are at the same distance from a given point in the plane.
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Center
The fixed point from which all points on the circle are equidistant.
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Radius
A segment whose endpoints are the center and a point on the circle.
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Diameter
A segment whose endpoints are on the circle.
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Parabola
The set of all points which are equally spaced from a fixed line and a fixed point.
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Axis of Symmetry
A line that divides the parabola into two equal parts.
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Focus
The fixed point from which distances to the directrix are measured.
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Directrix
The fixed line related to a parabola.
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Concavity
The direction of opening of a parabola.
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Vertex
The turning point of the parabola.
Flashcards (28)