Determine the domain and range of f(x, y)=√121-x² - y². Write an inequality describing the domain of f(x, y). Your inequality should involve the expression x² + y² and it must have the form a < x² + y² < b (or less than or equal to for either inequality, as appropriate). Give the range of f(x, y) in interval notation.

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A: Given:

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A: NOTE: Refresh your page if you can't see any equations. . to find the zeroes, take y=0

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A: The graph is shown below of f(x):

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