Finding the standard form, center, vertices, co vertices and foci of this ellipsoid?

Question

3x^2 + 12y^2 = 12

Answer 1

divide by 12 and get
x²/4 + y²/1 = 1

vertices at (±2,0), covertices at (0,±1)

√(4-1) = ±√3 for foci on long axis: (±√3,0)

Answer 2

Standard form is x² + (1/4)y² = 1

Center is (0,0)