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OpenStudy (anonymous):
A local charity has been tracking its charitable funding (donations minus operating costs) in the years since it began and has created a model of the data. The function below closely models their data for x years. d(x) = 691x^2 - 1,382x + 691 What is the domain of the charitable funds function? A. [0, ∞ ) B. [0, 691) C. (-∞, ∞ ) D. [1, ∞)
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