Find the focus and directrix of the parabola with the given
Find the focus and directrix of the parabola with the given equation. Then graph the parabola/
x2=12y
The focus is?
The directrix is?
Solution
This equation is of the form
(x-h)2=4p(y-k)
Where (h,k) is the centre
In the given question h=0 and k=0
Focus is given by (h,k+p)
And in the given question 4p=12
p=3
Therefore focus=(0,3)
Directrix , y=(k-p)
y=-3
