Parabolas: The set off all point in a plane tht are equidistant from
a fixed point and line.
The fixed point is called the focus
The fixed line is called the directrix
p= the directed distance from the Vertex to the focus
-p= the directed distance frm the Vertex to the directrix
(h,k) co-cordinated of the vertex
[4p] = the length of the latus rectum (the chord through the focus
perpindicular axis to the axis fo the parabola.
Standard Form: (y-k)^2 = 4p(x-h) (x-h)^2 + 4p(y-k)
p > 0 opens right p > 0 opens up
p < 0 opens left p < 0 open down
General Form:
y^2 + Dx + Ey + F= 0 x^2 + Dx + Ey + F= 0
right or left up or down
