The Parabola
seminar surveyer Active In SP Posts: 3,541 Joined: Sep 2010 
16102010, 03:55 PM
36THE_PARABOLA.PPT (Size: 148.5 KB / Downloads: 115) INTRODUCTION The parabola is the locus of all points in a plane that are the same distance from a line in the plane, the directrix, as from a fixed point in the plane, the focus. The parabola has one axis of symmetry, which intersects the parabola at its vertex The distance from the vertex to the focus is  p . The distance from the directrix to the vertex is also  p . 


