On What Interval Is the Function $f ( x ) = \frac { x } { x ^ { 2 } + 1 }$

question 78

Multiple Choice

On what interval is the function $f ( x ) = \frac { x } { x ^ { 2 } + 1 }$ increasing?

• A) \([ - 1,1 ]\)
• B) \([ - 1,2 ]\)
• C) \([ - 2,1 ]\)
• D) \([ - 2,2 ]\)
• E) \(( - \infty , 1 ]\)
• F) \(( - \infty , 2 )\)
• G) \([ - 2 , \infty )\)
• H) \(( - \infty , \infty )\)

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