Step 1 :

The function is and the point is .

The slope of the tangent line is the derivative of the function at .

Apply derivative on each side with respect to x .

Apply power property of derivative : .

Apply formulas :

                          .

Slope .

At the point , slope is :

Slope of the tangent line .

The point-slope form of a line equation is .

Substitute the point and in above equation.

The tangent line equation is

Solution :  

The tangent line equation is .