If changes sign from positive to negative as increases through a point in the…

MATHEMATICS · Single correct · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation

Problem

f'(x)

changes sign from positive to negative as

x

increases through a point

c

in the interior of the domain of

f

, then

x=c

is (a) a point of inflection (b) not a critical point (c) a local maximum (d) a local minimum