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Parabola Construction
Author:
Michael Horvath
Topic:
Parabola
This worksheet shows how to construct a parabola.
Point B is the parabola's focus.
Line d is the parabola's directrix.
The parabola is the locus of point I, which is the intersection of lines e and h.
Lines b and e are perpendicular to line a.
Circle g is centered on point B and passes through point F.
Circle f is centered on point F and passes through point B.
Line h passes through the intersections of circles f and g.
Move point A to change the vertex of the parabola.
Move point J to rotate the parabola around the vertex.
Move point B to change the distance of the focus and directrix from the vertex.
Move point E to trace the locus of point I.
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