Question

Write an equation of a parabola with the given focus and directrix

focus: (0,3) directrix: y=-1

Answer 1

ok now could you tell me how to write parabola equation with focus and directrix ?

Answer 2

\[y=a(x-h)^{2}+k\]

Answer 3

that's the equation for a parabola, right? @ikram002p

Answer 4

and what is k what is h ?

Answer 5

h=0 k=3 ?

Answer 6

a parabola with the a focus (a,b ) and directrix y=c
is givven by
(x-a)^2+b^2-c^2=2(b-c)y

Answer 7

so u have
a=0
b=3
c=-1
write the equation :)

Answer 8

it will be
(x-0)^2 + 3^2- (-1)^2 =2(3+1) y