Question

Write the equation for a parabola with a focus of (6, -4) and a directrix at y=--7

Answer 1

Step-by-step explanation:

If we consider only parabolas that open upwards or downwards, then the directrix will be a horizontal line of the form y=c .

Let (a,b) be the focus and let y=c be the directrix. Let (x0,y0) be any point on the parabola.