?Use the graph of 
to identify at which of the indicated points the derivative 
changes from positive to negative.
?
?
?
A. ?(5, 6)
B. ?(-1, 2), (2, 4)
C. ?(2, 4), (5, 6)
D. ?(2, 4)
E. ?(-1, 2)
Answer: A
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(-2)f(x).
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3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m