$\"\"$

The function is $\"\"$ .

Graph :

Graph the function :

$\"\"$

Observe the graph :

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

Domain of $\"\"$ is $\"\"$ .

The derivative of the function $\"\"$ is continuous at $\"\"$ .

As $\"\"$ is not in the domain of the function, hence it is discontinuous at $\"\"$ .

$\"\"$ is differentiable at $\"\"$ .

$\"\"$

$\"\"$ is differentiable at $\"\"$ .