Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = x2 - 9x + 12

A. Increasing on ; decreasing on 
B. Increasing on ; decreasing on 
C. Increasing on ; decreasing on 
D. Increasing on ; decreasing on 

Answer: B

Mathematics

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A. {9} B. {-9} C. {0.09} D. {-0.09}

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