- Thread starter
- #1

#### karush

##### Well-known member

- Jan 31, 2012

- 2,717

View attachment 517

on the graph above f(x) for [0,7] at x=4 and x=5 what is f' and f'' or does it not exist

thanks ahead

- Thread starter karush
- Start date

- Thread starter
- #1

- Jan 31, 2012

- 2,717

View attachment 517

on the graph above f(x) for [0,7] at x=4 and x=5 what is f' and f'' or does it not exist

thanks ahead

- Admin
- #2

- Jan 26, 2012

- 4,191

Great question, by the way! It reminds me of the question of whether, given a function defined on a closed interval, whether the endpoints are critical points (since the two-sided derivative does not exist there).