Find an Equation for the Rational Function Graph $f ( x ) = \frac { x + 4 } { x - 4 }$

Multiple Choice

Find an equation for the rational function graph.
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A) $f ( x ) = \frac { x + 4 } { x - 4 }$
B) $f ( x ) = \frac { ( x - 4 ) ( x + 6 ) } { ( x + 4 ) ( x + 6 ) }$
C) $f ( x ) = \frac { ( x + 4 ) ( x - 6 ) } { ( x - 4 ) ( x - 6 ) }$
D) $f ( x ) = \frac { ( x - 4 ) ( x - 6 ) } { ( x + 4 ) ( x - 6 ) }$