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what is the domain and range of y 2x 2

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what is the domain and range of y=2x^2

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Answer to a math question what is the domain and range of y=2x^2

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Domain: \left(-\infty,\infty\right) Range: \lbrack0,\infty)

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The domain of the function f(x)=x+7x2−144 is (−∞,), ( ,), and ( , ∞).