Solve the Problem $$x ^ { 2 } - 8 x \geq 0$$

Multiple Choice

Solve the problem.
- $$x ^ { 2 } - 8 x \geq 0$$

A) $[ 0,8 ]$
B) $[ - 8,0 ]$
C) $( - \infty , - 8 ]$ or $[ 0 , \infty )$
D) $( - \infty , 0 ]$ or $[ 8 , \infty )$