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If the equation of the parabola isy = ax^2 + bx + c, then it opens above when a>0 and opens below when a<0. [If a = 0 then the equation describes a straight line, and not a parabola!].

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9y ago

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In which direction does the parabola?

A parabola can open left, down, right, or left on a graph, if that's what you mean:\


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