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2 August, 15:10

What is the domain of the function y = 3 sqrt x - 1?

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  1. 2 August, 15:36
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    Y = 3√ (x-1).

    Constraint: the radicand (x-1) ≥ 0 or x≥ 1

    So the domain of this function is all Real for x ≥ 1

    {x∈ R/x≥1}
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