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Which function is shown on the graph below?
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  • frika


    Answer:

    C. y=\sqrt{2x-6}+1

    Step-by-step explanation:

    From the graph of the function, we can see that the domain of the function is x\ge 3, the range of the function is y\ge 1.

    Consider the parent function y=\sqrt{x}.

    The domain of this function is x\ge 0, the range of this function is y\ge 0.

    The function y=\sqrt{2x-6}+1 has

    the domain

    2x-6\ge 0\\ \\2x\ge 6\\ \\x\ge 3

    and the range

    y\ge 0+1\\ \\y\ge 1

    All other options have different domain, or the range, or both the domain and the range.