brittanyspires brittanyspires 15-06-2016 Mathematics contestada The standard form of the equation of a parabola is x = y2 - 4y + 20. What is the vertex form of the equation? A.x = (y - 4)2 + 12 B.x = (y - 2)2 + 16 C.x = (y - 2)2 + 4 D.x = (y - 4)2 + 4