$\"\"$

The function $\"\"$ is defined on open interval $\"\"$ .

If a function $\"\"$ is defined on the interval $\"\"$ , then it is said to be defined for all values of $\"\"$ .

The graph $\"\"$ has no hole, no break, and no asymptote.

Therefore limit exists for all values of $\"\"$ .

The function $\"\"$ is said to be continuous.

$\"\"$

The function $\"\"$ is said to be continuous.