CPM Homework Help : CALC Problem 2-144

Use the graph from problem 2-143 to complete the following table:

$a$	$\lim\limits_ { x \rightarrow a } f ( x )$	$f(a)$	Continuous at $x = a$ ?
$1$
$2$
$3$
$4$

Hint:

At a vertical asymptote, $f(x)$ approaches $−∞$ from the left and $+∞$ from the right.
Reason 1: $∞$ is not finite.
Reason 2: $+∞$ does not agree with $-∞$

More Help:

Careful! Just because $f(4)$ exists, does not mean that the limit $x→4$ exists.