Find the foci and directrices of the following parabola:

Question

(a) y^2=8x
(b) y^2=24x
(c) x^2=12y
(d) x^2=5y

Answer 1

See
https://www.jiskha.com/questions/1808859/Find-the-Foci-and-directrices-of-the-following-parabola-of-the-pattern-y-2-8x-at