$\"\"$

The function is $\"\"$ .

The instantaneous rate of change of the graph of $\"\"$ at the point $\"\"$ is the slope $\"\"$ of the tangent line at $\"\"$ given by $\"\"$ , provided the limit exists.

Consider the point $\"\"$ .

The slope at the point $\"\"$ is $\"\"$ .

$\"\"$

$\"\"$ .

The slope of the function $\"\"$ at any point is $\"\"$ .

$\"\"$

The slope of the function $\"\"$ at any point is $\"\"$ .