f(x)=-2x^2-60x-390 what are the coordinates of the vertex and what are the domain and range of the function. what is the axis of symmetry and where is the function increasing and decreasing.

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A: Explained below...

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A:

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A: Please rate and feel free to ask any query about any part of the question .

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A: given,        Px=3500x+80x2-x3-108000

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A: See the details solution in below

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