## Chapter 8 -- Algebra II

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mustbeky  on May 3, 2011

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# Chapter 8 -- Algebra II

 the point from which all points on a circle are equidistantcenter of a circle
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#### Definitions

the point from which all points on a circle are equidistant center of a circle
the point at which the major axis and the minor axis intersect center of an ellipse
the set of all points in a plane that equidistant from a given point center circle
any figure obtained by slicing a double cone conic section
given line; all points from this line to the focus create a parabola directrix
distance between two points, (x,y) and (x2,y2) Distance formula
the set of all points in a plane such that the sum of the distances from two given points in the plane called foci is constant ellipse
two given points in the plane of an ellipse foci of an ellipse
given point in a parabola foci of a parabola
line segment through the focus of a parabola and perpendicular to the axis of symmetry lactus rectum
the longer of the two line segments that form the axis of symmetry of an ellipse major axis
the shorter of the two line segments that form the axis of symmetry of an ellipse minor axis
the set of all points in a plane that are the same distance from a give point called the focus and a given line called the directrix parabola
a line that intersects a circle at exactly one point tangent

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