Question

Find all x-value(s) where `f(x) = 3^2-2/3+1` has a horizontal tangent line?

Find the derivatives f' (x) of the function f (x)

Answer 1

Any x-value

Explanation:

`f(x)` is just a constant. The derivative of any constant is `0`. So:

`f'(x)=0`.

So any x-value has a horizontal tangent line.