well youre right! Weve gotta find the second derivative. Lettss do it>
good good good. so then the inflection point
good good Now plugging back in the original formula gives us (-1,2).
good good Concavity
Using a little noodle power, you can do the rest..........
- x = a is a locally a minimum if f"(a) > 0,
- x = a is a locally a maximum if f"(a) < 0; and
You can DO IT!!!!!!!!