$\"\"$

Find the $\"\"$ .

Observe the graph:

The function $\"\"$ is continuous at $\"\"$ .

As $\"\"$ tends to $\"\"$ from the left hand side, the function approaches to $\"\"$ .

As $\"\"$ tends to $\"\"$ from the right hand side, the function approaches to $\"\"$ .

$\"\"$ .

$\"\"$

$\"\"$ .