Determine the Critical Numbers of the Given Function and Classify $f ( x ) = \frac { 1 } { x ^ { 2 } - 8 x + 7 }$

question 6

Multiple Choice

Determine the critical numbers of the given function and classify each critical point as a relative maximum,a relative minimum,or neither.Round numbers to two decimal places,if necessary. $f ( x ) = \frac { 1 } { x ^ { 2 } - 8 x + 7 }$

• A)x = 1,4,7; (1,1)relative maximum; (4,-0.11)relative minimum;(7,1)relative maximum
• B)x = 1,7; (1,1)relative maximum; (7,1)relative maximum
• C)x = 1,7; (1,1)relative maximum; (7,1)relative minimum
• D)x = 1,4,7; (4,-0.11)relative maximum

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