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Graphical Representation: Second Derivative

APCALC-SVBJKK

Created for Albert.io. Copyright 2016. All rights reserved.

Based on the graph of ${ f }^{ \prime \prime }$shown above, which of the following represents the largest interval over which $f$ is concave down?

A

$\left( -5,-1 \right) $

B

$\left( -3,-1 \right) $

C

$\left( -3,1 \right) $

D

$\left( -1,5 \right) $