circles and parabolas
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8 Terms
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circle
set of all points (x, y) in a plane equidistant from a fixed point called center
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radius
distance from the center to any point on the circle
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parabola
the set of all points (x, y) in a plane that are equidistance from a fixed line and a fixed point not on the line
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directrix
parabola fixed line
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focus
parabola fixed point
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vertex
a point in the parabola where the line passes through
midpoint between the focus and the directrix
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axis of symmetry
passes through the focus and vertex and is perpendicular to the directrix
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latus rectum
4p
line segment that passes through the focus and is parallel to the directrix
endpoints lie on the curve
Note 
Flashcards (93)