Solve the Problem $x=a$ $f(x)=x^{3}+x^{2}-3 x-7, a=-3$
A) 18
B) -14
C) 21
D) 14

Multiple Choice

Solve the problem.
-Compute the instantaneous rate of change of the function at at $x=a$ . $f(x) =x^{3}+x^{2}-3 x-7, a=-3$ .

A) 18
B) -14
C) 21
D) 14