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19) Question 19 5 pts Determine where the graph of the given function is concave upward and concave downward. Find the coordinates of all inflection

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Question 19 5 pts Determine where the graph of the given function is concave upward and concave downward. Find the coordinates of all inflection points. f (x) = x - 3x2+ x- 4 O Concave upward for x 1.8; concave downward for 0.2 1.8; inflection at (0.2, -3.7) and (1.8, 13.4) O Concave upward for x 1; inflection at (1, 1) O Concave upward for x > 1; concave downward for x

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