Which of the following statements best describes when the graph of a differentiable…

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

Problem

Which of the following statements best describes when the graph of a differentiable function

f

is concave up on an open interval

I

? (a)

f'(x)>0

for every

x \text{ in } I

. (b)

f''(x)<0

for every

x \text{ in } I

. (c)

f''(x)>0

for every

x \text{ in } I

. (d)

f'(x)

is decreasing on

I