contestada

which equation shows the quadratic function f(x)=x^2-8x-6 in vertex form?

A. f(x)= (x-4)^2-10

B. f(x)= (x-8)^2-14

C. f(x)=(x-8)^2-6

D. f(x)=(x-4)^2-22

Respuesta :

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D. f(x)=(x-4)^2-22 is the answer, both vertexes are at (4,−22)

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