Which equation represents a parabola that has a focus of (0, 0)and a directrix of y = 2?
x2=−4(y−1)
x2=−4y
x2=−(y−1)
x2=−y
The directrix is above the focus.....this parabola turns downward
The vertex = (0, 1)
p = 1 = distance from vertex to the directrix
The correct equation is
x^2 = -4 (y - 1)
See here : https://www.desmos.com/calculator/utvou2mj4y
