Identify which of the twelve basic functions listed below fit the description given.
-The one function that is decreasing from $( 0 , \infty )$
A) $y = \frac { 1 } { x }$
B) $y = | x |$
C) $y = \ln x$
D) $y = \frac { 1 } { 1 + e ^ { - x } }$

Question

Quizplus · Accepted Answer

The function $y = \frac{1}{x}$ is decreasing in the interval $(0, \infty)$ because as $x$ increases, the value of $y$ decreases.

Identify Which of the Twelve Basic Functions Listed Below Fit (0,∞)( 0 , \infty )(0,∞)

Identify Which of the Twelve Basic Functions Listed Below Fit $( 0 , \infty )$