Question: Answer Entered Result Message Preview (-4.5, 0) (2,0) correct Your union (-infinity,0) U contains (- (-00, 0) U(-00, -4.5)| incorrect infinity,-4.5) overlapping intervals -4.5, 0

Answer Entered Result Message Preview (-4.5, 0) (2",0) correct Your union (-infinity,0) U contains (- (-00, 0) U(-00, -4.5)| incorrect infinity,-4.5) overlapping intervals -4.5, 0 -4.5, 0 correct At least one of the answers above is NOT correct. (1 point) Let f (x) = -24 - 9x3 + 3x - 7. Find the open intervals on which f is concave up (down). Then determine the -coordinates of all inflection points of f. 1. f is concave up (-9/2, 0) on the intervals 2. f is concave down on the (-inf,0) U (-inf,-4.5) intervals The inflection 3. points occur at -4.5,0 =

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