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Use the sign diagram for f(x) to determine the following. (If an answer does not exist, enter DNE.) f(x) 0 0 + + + 5 8 (a)

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Son Giver flca) ---> +++ s- 8 @ critical numbers are x=5,8 b Increases on (5,5) C Decreses os (-0,5), (8,00) at 228 flex chan

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