#### Answer

This means that
$$\lim\frac{f(x)}{g(x)}=c$$
where $c$ is any nonzero constant. ($c\in\mathbb{R}^+\cup\mathbb{R}^-$)

#### Work Step by Step

This means that when we take the limit of the ratio of those functions when $x\to\infty$ we get some nonzero constant as a result or:$$\lim\frac{f(x)}{g(x)}=c.$$