Respuesta :

DeanR

The zeros of that quadratic are x=8 and x=2 so the axis is right in between at x=(8+2)/2=5

The vertex is the meet of the axis and the parabola, so

(5, f(5))=(5, (5-8)(5 - 2)) = (5, (-3)(3)) = (5, -9)

Answer: (5, -9)

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