# How do you find the critical numbers for #f(x)= x^2 - 4# to determine the maximum and minimum?

##### 1 Answer

There is one critical point at

#### Explanation:

At a max/min

And,

graph{x^2-4 [-10, 10, -5, 5]}

There is one critical point at

At a max/min

And,

graph{x^2-4 [-10, 10, -5, 5]}