What is the monotone f(x)=(x+1)/(x-1) ?

The monotone f(x)=(x+1)/(x-1) is Decreasing:-infinity <x<1,Decreasing:1<x<infinity

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monotone f(x)=(x+1)/(x-1)

monotone intervals

f (x) = \frac{x + 1}{x - 1}

Decreasing : - \infty < x < 1, Decreasing : 1 < x < \infty

Solution steps

f^{'} (x) = - \frac{2}{( x - 1 ) ^{2}}

Find intervals:

Decreasing

: - \infty < x < 1,

Decreasing

: 1 < x < \infty

Decreasing : - \infty < x < 1, Decreasing : 1 < x < \infty

What is the monotone f(x)=(x+1)/(x-1) ?
The monotone f(x)=(x+1)/(x-1) is Decreasing:-infinity <x<1,Decreasing:1<x<infinity