12.1 Exercise 53

Use a graphing utility to find numerical or graphical evidence to determine the left and right-hand limits of the function given as $x$ approaches $a .$ If the function has a limit as $x$ approaches $a ,$ state it. If not, discuss why there is no limit.

$\underset{x \rightarrow - 1}{\lim} \frac{\left|x + 1\right|}{x + 1}$