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OpenStudy (anonymous):
Please help, will medal~ :3 Which of the following equations represents a parabola that opens down and has a vertex with a positive x-value? A. 2x^2 - 10x + 8 <--- my guess B. -3x^2 + 22x +8 C. 2x^2 - 12x - 18 D. 6x^2 + 14x - 12
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