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A '''parabola''' is a curve on a plane, consisting of all the points that are equidistant from a point called the ''focus'' and a line, called the ''directrix''.
A '''parabola''' is a curve on a plane, consisting of all the points that are equidistant from a point called the ''focus'' and a line, called the ''directrix''.
It is a conic section, the intersection of a plane and a cone where the plane is parallel one side of the cone.
It is a [[conic section]], the intersection of a [[plane]] and a [[cone]] where the plane is parallel one side of the cone.
The general [[algebra]]ic formula for a parabols is:
The general [[algebra]]ic formula for a parabols is: