Find an Equation for the Rational Function Graph $f ( x ) = \frac { 2 x ( x + 2 ) } { x + 1 }$

Multiple Choice

Find an equation for the rational function graph.
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A) $f ( x ) = \frac { 2 x ( x + 2 ) } { x + 1 }$
B) $f ( x ) = \frac { x ( x + 2 ) } { x + 1 }$
C) $f ( x ) = \frac { 2 x ( x - 2 ) } { ( x - 1 ) ^ { 2 } }$
D) $f ( x ) = \frac { 2 x ( x + 2 ) } { ( x + 1 ) ^ { 2 } }$