A Company Finds That the Number of New Products It $n = - 1 + 9 x + 4 x ^ { 2 } - 0.3 x ^ { 3 }$

Multiple Choice

A company finds that the number of new products it develops per year depends on the size if its annual R&D budget, x (in thousands of dollars) , according to the following formula. Round your answer to one decimal places. $n = - 1 + 9 x + 4 x ^ { 2 } - 0.3 x ^ { 3 }$
Find $n ^ { \prime \prime } ( 2 )$ .

A) 5.4
B) 9.4
C) 7.4
D) -3.6
E) 4.4