Find an equation in standard form for the hyperbola with vertices at (0, ±4) and foci at (0, ±5).
y squared over 16 minus x squared over 9 = 1
y squared over 25 minus x squared over 16 = 1
y squared over 16 minus x squared over 25 = 1
y squared over 9 minus x squared over 16 = 1