# What is the equation of the line normal to # f(x)=1/(e^x+4)# at # x=6#?

##### 1 Answer

Oct 22, 2017

#### Explanation:

To find the equation of Normal to the line

We know the slope of normal is

Differentiate both sides with respect to

So the slope of the normal (

Therefore

Now to find the

We know

Therefore the

We know the equation of a line is

Therefore