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Use values of f'' to determine the concavity of the graph of f . Determine the interval(s) over which the graph of y =x* -4x'+7

Use values of f'' to determine the concavity of the graph of f.
Determine the interval(s) over which the graph of y =x* -4x'+7 is concave up or concave down. a.) Concave up on (3,co) O Concave down on ( - co,3) U (0,3) b.) Concave up on (0,2) O Concave down on (- co,0) U (2,00) c.) Concave up on ( - co,() U(2,00) O Concave down on (0,2) d.) Concave up on (- co,2) U(2,00)

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