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Which of the following is the vertex of the quadratic equation y = 6x2 – 24x + 32? Answer A. (–2, 8) B. (–2, –8) C. (2, 8) D. (2, –8)
y = 6x2 – 24x + 32 = 6 (x-2)^2 + 8 ans is C
get the derivative ... equate it to zero. then you have x, so you will find y.