Provide an Appropriate Response $f ( x ) = \frac { c } { 1 + a e ^ { - b x } } , \text { where } b > 0$

Short Answer

Provide an appropriate response.
-Consider the logistic function $f ( x ) = \frac { c } { 1 + a e ^ { - b x } } , \text { where } b > 0$ . What is the limiting value of this function?