$\"\"$

The function is $\"\"$ and the point is $\"\"$ .

$\"\"$ .

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

$\"\"$

Slope of the tangent is derivative of the function at the given point.

Slope at the point $\"\"$ :

Substitute $\"\"$ in $\"\"$

$\"\"$

$\"\"$ .

Point-slope form of line equation: $\"\"$ .

Substitute point $\"\"$ and slope $\"\"$ in the above equation.

$\"\"$

Tangent line equation is $\"\"$ .

$\"\"$

Tangent line equation is $\"\"$ .