Calculus Can Be Used to Find the Slope of the Line

Multiple Choice

Calculus can be used to find the slope of the line tangent to a curve. The slope of the tangent to the curve $y = f ( x ) \text { at } x = a$ is f'(a) . Use f'(x) to find the slope of the tangent to $y = f ( x )$ at the given value of x.
- $f ^ { \prime } ( x ) = 6 x ^ { 3 } - 2 x ^ { 2 } + 5 x - 19$ at $x = - 2$

A) $- 69$
B) 85
C) $- 75$
D) $- 85$