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To find the vertex of a parabola that is in vertex form y = a (x - h) 2 + k: Compare the given
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Find the vertex of the parabola. y = 3 x 2 + 12 x − 12. Here, a = 3 and b = 12 . So, the x -coordinate of the vertex is: − 12 2 ( 3) = − 2. Substituting in the original equation to get the y -coordinate, we get: y = 3 ( − 2) 2 + 12 ( − 2) − 12 = − 24.
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