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26-05-2020
Mathematics

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What is the vertex of the quadratic function f(x) = (x-8)(x - 2)?

Respuesta :

26-05-2020

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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