Hi,

C(0,0),
Foci (0±
, 0)
Standard Form of an Equation of an Hyperbola opening up and down is:
with C(h,k) and vertices 'b' units up and down from center, 2b the length of the transverse axis
Foci
units units up and down from center, along x = h
& Asymptotes Lines passing thru C(h,k), with slopes m = ± b/a