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21 July, 12:33

Are there any restrictions on domain or range for linear, quadratic, or square root functions?

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  1. 21 July, 13:47
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    Quadratic functions have no domain restrictions. Since x2 ≥ 0, x2 + 7 ≥ 7 ... Negative values can be used for x, but the range is restricted because x2 ≥ 0. The correct answer is: The domain is all real numbers and the range is all real numbers f (x) such that f (x) ≥ 7.
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