Finx
Member
- Joined
- Mar 29, 2008
- Messages
- 375
- Gender
- Male
- HSC
- 2009
So, there's always a part in a question which asks "Find for which values of x is f(x) concave up [or down]" - usually for some cubic curve for Geometrical Applications of Differentiation.
I'm not 100% sure how to approach this. I know there's a way to do it graphically, but I'd like to know the algebraic method please.
Thanks in advance!
I'm not 100% sure how to approach this. I know there's a way to do it graphically, but I'd like to know the algebraic method please.
Thanks in advance!