Question

the equation of an ellipse with vertices (0, 12) and (0, -12) and co-vertices (2, 0) and (-2, 0)

Answer 1

is pretty much given away really
notice the vertices, the "x" doesn't change, so is moving upwards/downwads
the center is half-way between (0, 12) and (0, -12), so (0, 0)
and notice the co-vertices, they're pretty much give away the conjugate axis value