Find the Equation That the Given Graph Represents $P ( x ) = x ^ { 3 } - 4 x ^ { 2 } + 20 x$

Multiple Choice

Find the equation that the given graph represents.
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A) $P ( x ) = x ^ { 3 } - 4 x ^ { 2 } + 20 x$
B) $P ( x ) = x ^ { 3 } + 9 x$
C) $P ( x ) = - x ^ { 3 } + 4 x ^ { 2 } - 9$
D) $P ( x ) = - x ^ { 3 } + 20 x$