Choose the Logistic Function That Best Approximates the Curve $f ( x ) = \frac { 8 } { 1 + 7 ( 0.5 ) ^ { - x } }$

Multiple Choice

Choose the logistic function that best approximates the curve.

A) $f ( x ) = \frac { 8 } { 1 + 7 ( 0.5 ) ^ { - x } }$
B) $f ( x ) = \frac { 8 } { 1 + 3 ( 0.5 ) ^ { - x } }$
C) $f ( x ) = \frac { 8 } { 1 + 3 ( 3 ) ^ { - x } }$