$\"\"$

Observe the graph :

The graph is horizontal right shift of parent function $\"\"$ by one unit.

And the graph is vertical down shift of parent function $\"\"$ by one unit.

So the required function is $\"\"$ .

$\"\"$

The function is $\"\"$ .

Apply derivative with respect $\"\"$ .

$\"\"$

Apply derivative with respect $\"\"$ .

$\"\"$

Plot the graphs $\"\"$ , $\"\"$ and $\"\"$ .

$\"\"$

$\"\"$ .