SOLUTION: A parabola has its focus at (7, -4) and directrix Y = 2. Find the equation

Question 925667: A parabola has its focus at (7, -4) and directrix Y = 2. Find the equation
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
A parabola has its focus at (7, -4) and directrix y = 2
(directrix an horizontal line...Parabola Opening Downward) x = 7 the line of Symmetry
the vertex form of a Parabola opening up(a>0) or down(a<0),
where(h,k) is the vertex and x = h is the Line of Symmetry , With Directrix y = (k - p)where a = 1/4p
Distance from - 4 t 2 = 6, 6/2 = 3, p = -3, V(7,-1), a = 1/4p = -1/12
.......

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