# What is the equation of the normal line of #f(x)= x^3-3x^2-2x+6# at #x = 4#?

##### 1 Answer

Feb 3, 2016

Equation of normal:

#### Explanation:

The line of normal will pass through the point

From coordinate geometry, the gradient of the line of normal,

The

Equation of normal:

Here is the graph