Let $f$ be the function with derivative defined by $f ^ { \prime } ( x ) = 2 + ( 2 x - 8 ) \sin ( x + 3 )$. How many points of inflection does the graph of $f$ have on the interval $0 < x < 9$? (A) One (B) Two (C) Three (D) Four
Let $f$ be the function with derivative defined by $f ^ { \prime } ( x ) = 2 + ( 2 x - 8 ) \sin ( x + 3 )$.
How many points of inflection does the graph of $f$ have on the interval $0 < x < 9$?\\
(A) One\\
(B) Two\\
(C) Three\\
(D) Four