f’’(x)
f’(x)
f(x)
f’’(x)<0
f’(x) decreases
concave down
f’’(x)=0
A extrema (turning point)
(in the middle of concave up or down)
f’’(x)>0
f’(x) increase
concave up
f’(x)
f(x)
f’(x)<0
decrease
f’(x)=0
A extrema (turning point)
f’(x)>0
increase
Inflection Value and Points with Theorem
Critical Values and Point with theorems