Question 72399
X is greater than OR equal to 10 or X is less than or equal to 10. 
If you have to put the answer in interval notation you need to take
account of the "equal" words.
X is greater than or equal to 10 is [10,inf)
X is less than or equal to 10 is (-inf,10]
--------
You want the union of these which is (-inf,inf)

Cheers,
Stan H.