The vertex of the parabola below is at the point (2,-4). Which of the following could be this parabola's equation?
10
10
1(2,-4)
- 10 -
O A. y=x²
B. y= (x - 2)2 - 4
O c. y= 4x2 + 4
OD. y= (x + 2)2 + 4

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