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Determine the graph of f(x,y) = 9 - x^2 - y^2 answer?

choices are in the picture provided... TYIA

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1 Answer

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  • ?
    Lv 7
    5 months ago

    In 2 dimensions, this is a circle centered at the origin with radius 3.

    In 3-dimensions, when x=y=0, z = f(x,y) = 9, so the answer is (a)

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