Use Any Method to Find the Slope of the Tangent $f ( x ) = \frac { 1 } { x ^ { 2 } }$

question 79

Multiple Choice

Use any method to find the slope of the tangent line to the graph of the function $f ( x ) = \frac { 1 } { x ^ { 2 } }$ at the point that has x-coordinate $x = 5$ .

• A)-125
• B) 25
• C) \(\frac { 1 } { 25 }\)
• D) \(- \frac { 2 } { 125 }\)
• E) \(\frac { 1 } { 125 }\)

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