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Algebra 2 unit 4

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Term
Definition
Conic Section   intersection of a plane with one or both nappes of a double cone.  
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Circle   The locus points of points in a plane that are equidistant from one point, called the center  
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Ellipse   The locus of points in a plane such that the sum of the distances from any point in the locus to two points, called the foci, is a constant  
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Hyperbola   The locus of points in a plane such hat the difference of the two fixed points called the foci is a constant  
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Parabola   The locus of points in a plane that are equidistant from a line and a point not on the line  
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Major Axis   The line through the vertices of an ellipse  
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Transverse axis   the line joining the two vertices of an ellipse  
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Directrix   the line along with a point not on the line which is used to generate a parabola  
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Eccentricity   a Measure of how close an ellipse is to being circular  
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Astmptote   one of two lines through the center of a hyperbola that the hyperbola approaches but never intersects  
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Focus   one of two points such that the difference of the distances from any point on the hyperbola to the foci is a constant  
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