Conic
Sections: Overview of Ellipse ( Click Ellipse )
( Click on
the Blue Underlined Words for expanded explanations! )
Definition: A elipse is a set of points whose sum of distances from two points (foci) is contant. *
Equation: x2 /a2 + y2 /b2 = 1 Center= (0,0) (x-h)2/a2 + (y-k)2/b2 = 1 Center = (h,k)
Important Concepts for Elipses: Center,
Foci, Axis,
Intercept(s)
Eccentricity (e=c/a & 0<e<1) Latus Rectum: LR = 2b2/a Foci Formula: a2 – c2 = b2
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