Answer
As $x\to {{1}^{-}}$ , $f\left( x \right)\to -\infty .$
Work Step by Step
The vertical asymptote is $x=1$ and the function decreases without bound as $x$ tends to $1$ from the left side.
So, the function $f\left( x \right)\to -\infty $ as $x\to {{1}^{-}}$.