Which of the following best describes a critical point of a real-valued function…

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

Problem

Which of the following best describes a critical point of a real-valued function

f

defined on an open interval? (a) A point

c

where

f'(c)=0

(b) A point

c

where

f(c)

attains a maximum or minimum value (c) A point

c

where

f'(c)=0

f'

is not defined at

c

(d) A point

c

where

f''(c)=0