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I need major help please Find the vertex of the graph of the quadratic function. Determine whether the graph opens upward or downward, find any

I need major help please

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Find the vertex of the graph of the quadratic function. Determine whether the graph opens upward or downward, find any intercepts, and sketch the graph. f(x) =x2+2x-15 The vertex is (Simplify your answer. Type an ordered pair. Use integers or fractions for any numbers in the expression.)

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