daiseycarlisle daiseycarlisle

17-05-2017
Mathematics

contestada

The vertex of this parabola is at (5, -4). Which of the following could be its equation?

A.
y = 2(x - 5)2 - 4

B.
y = 2(x + 5)2 - 4

C.
y = 2(x + 5)2 + 4

D.
y = 2(x - 5)2 + 4

Respuesta :

andrecocagne andrecocagne

17-05-2017

So, a parabola has the equation

y=a(x-h)^2+k with vertex (h,k) so we have y=a(x-5)^2-4 so the answer is A

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