Find the Derivative of the Following Function Using the Limiting $f ( x ) = \frac { 2 } { x + 7 }$

question 69

Multiple Choice

Find the derivative of the following function using the limiting process. $f ( x ) = \frac { 2 } { x + 7 }$

• A) \(f ^ { \prime } ( x ) = \frac { 2 } { ( x + 7 ) ^ { 2 } }\)
• B) \(f ^ { \prime } ( x ) = - \frac { 2 } { ( x - 7 ) ^ { 2 } }\)
• C) \(f ^ { \prime } ( x ) = - \frac { 2 } { ( x - 7 ) }\)
• D) \(f ^ { \prime } ( x ) = - \frac { 2 } { ( x + 7 ) ^ { 2 } }\)
• E)none of the above

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