$\"\"$

The function is $\"\"$ .

Graph the function $\"\"$ .

$\"\"$

Observe the graph:

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

$\"\"$ .

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

$\"\"$ .

The function has discontinuous at $\"\"$ .

The function is $\"\"$ .

The Denominator of the function should not be the zero.

$\"\"$

The function has discontinuous at $\"\"$ .

$\"\"$

Graph:

$\"\"$

$\"\"$ .

The function has discontinuous at $\"\"$ .