Find the point of diminishing returns (x,y) for the function R(x), where R(x) represents revenue (in thousands of dollars) and x represents the amount spent on advertising (in thousands of dollars). R(x) = (-x° + 63x2 + 1250x- 400). 0sxs25 16 The point of diminishing returns is (Type an ordered pair. Round to the nearest tenth as needed.

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