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The domain of g(f(x)) where f(x)=x+4 and g(x)=sqrt(x) is?

  • math -

    F(x) = x + 4.
    g(x) = sqrt(x).
    Find g(F(x)).

    g(F(x))) = g(x+4) = sqrt(x+4).

    Domain = All real values of X that does
    not give a negative radical value:

    Domain: X=> -4.
    Therefore, the domain is all values of
    X from -4 up.

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