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Elliptical table f(x)=X^2/7+Y^2/9=1 Domain:< -7,7> Range: <-9,9> This function is symmetric about the origin, therefore it is an even function. f(-x)=(-X)^2/7+(-Y)^2/9=1 The limit as x approaches infinity is (NO END BEHAVIOR) The limit as x approaches -infinity is (NO END BEHAVIOR) There are no discontinunities.