Find the standard form Foci 0 9 0 9 vertices 0 6 0 6 y236 x

Find the standard form Foci: (0, -9), (0, 9); vertices: (0, -6), (0, 6) y^2/36 - x^2/45 = 1 X^2/36 - y^2/81 = 1 x^2/36 - y^2/45 = 1y^2/36 - x^2/81 = 1

it is an updown parabola
so general equation is y^2/a^2-x^2/b^2=1
a=6
so, a^2=36
b^2=c^2-a^2=81-36=45
so our equation is
y^2/36-x^2/45=1
so option A is correct