Difference between revisions of "Parabola"
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[[Image:Parabola.png|right|thumb|pxl=200|various parabolas]] | [[Image:Parabola.png|right|thumb|pxl=200|various parabolas]] | ||
| − | 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. | ||
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A parabola is the path taken by an object in motion subject to a uniform [[acceleration]], such as [[gravity]], ignoring friction. | A parabola is the path taken by an object in motion subject to a uniform [[acceleration]], such as [[gravity]], ignoring friction. | ||
| − | [[category: | + | [[category:Plane Geometry]] |
Revision as of 02:00, January 16, 2009
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.
The general algebraic formula for a parabola is:
A parabola is the path taken by an object in motion subject to a uniform acceleration, such as gravity, ignoring friction.