$\"\"$

Observe the graph.

The two points on the graph of the function are $\"\"$ and $\"\"$ .

The slope of the function is $\"\"$ .

The slope of the function with points $\"\"$ and $\"\"$ :

$\"\"$ .

Find the line equation.

Point slope form of line equation is $\"\"$ .

Substitute the points $\"\"$ and $\"\"$ in line equation.

$\"\"$

$\"\"$ .

Apply derivative on the each side with respect to $\"\"$ .

$\"\"$

The graph the derivative function $\"\"$ .

$\"\"$

The derivative function is $\"\"$ .

Graph of the derivative function is

$\"\"$ .