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algebra

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Let R = {0,1,2,3}be the range of h(x)= x-7. The domain of h is?

  • algebra - ,

    h(x)=x-7
    h-1(x)=x+7

    From
    range of h(x) = domain of h-1(x)
    and
    domain of h(x) = range of h-1(x)

    We conclude that the domain of h(x) is the same as the range of
    h-1(x)=x+7
    where the domain of h-1(x) is {0,1,2,3}.
    For example:
    h-1(0)=0+7=7
    ...
    domain of h(x) is therefore {7,...}

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