Find All Critical Numbers for the Function $f ( x ) = \frac { x - 1 } { x + 1 }$

question 10

Multiple Choice

Find all critical numbers for the function $f ( x ) = \frac { x - 1 } { x + 1 }$ .

• A)1
• B)1, 2
• C)-1
• D)No Critical Number
• E)2
• F)1, -1
• G)-1, 2
• H)None of the above

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