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Find the Intervals of Increase and Decrease for the Function f(x)=x2+9x−5f ( x ) = x ^ { 2 } + 9 x - 5

Question 86

Multiple Choice

Find the intervals of increase and decrease for the function f(x) =x2+9x−5f ( x ) = x ^ { 2 } + 9 x - 5


A) Decreasing for x<−92x < - \frac { 9 } { 2 } and increasing for x>−92x > - \frac { 9 } { 2 }
B) Increasing for all x
C) Decreasing for x>−92x > - \frac { 9 } { 2 } and increasing for x<−92x < - \frac { 9 } { 2 }
D) Decreasing for all x

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