In this problem, 
and its graph are given. Use the graph of 
to determine where 
is concave down. 
Definitions:
SSI Classification
A system used to classify surgical site infections (SSIs) based on their severity and the specific area of the body affected.
Fascia
A structure that covers entire skeletal muscles and separates them from each other.
Muscle
A tissue in the body capable of contraction, which enables movement of the body and maintains posture.
Surgical Procedure
A medical operation involving manual and instrumental techniques to investigate or treat a pathological condition such as disease or injury.
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