#### Answer

$x\lt-1$

#### Work Step by Step

$\bf{\text{Solution Outline:}}$
The solutions to the given inequality, $
f(x)\lt g(x)
,$ are the $x$-values for which the graph of $f$ is below the graph of $g.$
$\bf{\text{Solution Details:}}$
Using the graph, the solutions to the given inequality are the $x$-values for which $f$ is below $g.$ Hence, the solution set is
\begin{array}{l}\require{cancel}
x\lt-1
.\end{array}