Question

Given f(x)=5-4/x find critical point c between 1 and 4?

Answer 1

No critical point between 1 and 4

Explanation:

`f(x)=5-4/x`
`f'(x)=4/x^2`

For critical points, f'(x)=0

ie `4/x^2=0`
`4=0`
Therefore, x has no solution

So there should not be a critical point between 1 and 4