$f ( x ) = \frac { 4 x ^ { 2 } } { x ^ { 2 } + 1 }$
Use asymptotes to match

Name: $f ( x ) = \frac { 4 x ^ { 2 } } { x ^ { 2 } + 1 }$ Use asymptotes to match
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Question

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The function has a horizontal asymptote at y=4 as x approaches infinity and negative infinity. It also has a vertical asymptote at x= i and x= -i where i is the imaginary unit. Only graph B accurately includes both sets of asymptotes.

f(x)=4x2x2+1f ( x ) = \frac { 4 x ^ { 2 } } { x ^ { 2 } + 1 }f(x)=x2+14x2​

$f ( x ) = \frac { 4 x ^ { 2 } } { x ^ { 2 } + 1 }$