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Describe the interval on which the function below is continuous. f(x) = x x2 + 3x + 9 (−∞, ∞) [3, 9) (−∞, 3) [3, ∞) (3, 9)

Describe the interval on which the function below is continuous. f(x) = x x2 + 3x + 9 (−∞, ∞) [3, 9) (−∞, 3) [3, ∞) (3, 9)

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Describe the interval on which the function below is continuous. ( − ∞ , ∞ ) [ 3 , 9 ) ( − ∞ , 3 ) [ 3 , ∞ ) ( 3 , 9 )

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