The domain of the function is

MATHEMATICS · Single correct · AoPS · Mathematics · Special Functions · Special Functions

Problem

The domain of the function g(x)=7−2xg(x)=\sqrt{7-2x} is (a) (−∞,∞)(-\infty,\infty) (b) [72,∞)[\tfrac72,\infty) (c) (−∞,72](-\infty,\tfrac72] (d) (−∞,72)(-\infty,\tfrac72)

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