Determine All Critical Points for the Function $$f ( x ) = \frac { - 6 x } { x + 2 }$$

Multiple Choice

Determine all critical points for the function.
- $$f ( x ) = \frac { - 6 x } { x + 2 }$$

A) x = -2
B) x = -12 and x = 0
C) x = 2
D) x = 0 and x = -2