The vertex of the parabola below is at the point (1,-3). Which of the equations
below could be the one for this parabola?
6
(1, -3)
A. X=-3(4-1)
O B. y= (x + 1)2-3
O c. y = (x-1)2-3
O D. y = (x+3)2 + 1
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