ariegalore ariegalore 19-12-2019 Mathematics contestada The vertex of this parabola is at (1,3). Which of the following could be its equation? (1,3) oc O A. x=3(y - 3)2+1 O B. = 3(y - 3)2-1 O c. y = 3(x + 1)2-3 D. y = 3(x + 1)2 + 3