# What is the equation of the line that is normal to #f(x)= x/sqrt( x^2-2) # at # x=2 #?

##### 1 Answer

#### Explanation:

I always prefer to rewrite my functions so I can simply use the Product Rule.

Find the derivative to find the slope of the **tangent** line at

To find the **normal** slope, we take the negative reciprocal of our tangent slope.

We can now construct an equation using a basic point-slope formula: