Estimate the Derivative of the Function $f ( x ) = \frac { x ^ { 2 } } { 8 } - \frac { x ^ { 3 } } { 6 }$

question 67

Multiple Choice

Estimate the derivative of the function $f ( x ) = \frac { x ^ { 2 } } { 8 } - \frac { x ^ { 3 } } { 6 }$ at the point $x = - 2$ .
Please select the correct answer rounded to the nearest hundredth.

• A)-2.5
• B) -2.55
• C) -3
• D) -0.5
• E) -2.45

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