Question

Which is the directrix of a parabola with equation X^2=8y

Answer 1

Answer:

y=-2

Step-by-step explanation:

Which is the directrix of a parabola with equation X^2=8y

The directrix is given by y=k−p

(h,k+p).focus of a parabola is given by (h,k+p).

(x−h)^2=4p(y−k), is known as the equation of a parabola

X^2=8y

comparing we have

(x−h)^2=x^2

x=x-h

h=0

4p(y−k)=8y

k=0

4py=8y

p=2

recall the directrix is given by  y=k−p

y=0-2

y=-2

Parabola is a curve such that any point is at equidistant from the focus

Answer 2

√8y or x=−√8y i believe gud luck luv