Rewrite the quadratic function f(x) = 5x+10x + 9 in standard form, f(x) = a(xh) +...

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Rewrite the quadratic function f(x) = 5x+10x + 9 in standard form, f(x) = a(xh) + k, and give the vertex. f(x) = Vertex: (x- 8. )+ help (points) help (numbers) Rewrite the quadratic function f(x) = 5x+10x + 9 in standard form, f(x) = a(xh) + k, and give the vertex. f(x) = Vertex: (x- 8. )+ help (points) help (numbers)