SOLUTION: Find and equation of a parabola with a vertex at the origin and a directrix at y=-3.5? A. y=-1/14x^2 B. y=1/14x^2 C. y=1/14y^2 D. y=-1/14y^2

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Find and equation of a parabola with a vertex at the origin and a directrix at y=-3.5? A. y=-1/14x^2 B. y=1/14x^2 C. y=1/14y^2 D. y=-1/14y^2      Log On


   



Question 875537: Find and equation of a parabola with a vertex at the origin and a directrix at y=-3.5?
A. y=-1/14x^2
B. y=1/14x^2
C. y=1/14y^2
D. y=-1/14y^2

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
V(0,0) Directrix y = -3.5(below the vertex) Parabola opening Upward a > 0
B. y= 1/14x^2