If , which of the following could be the value of x?
I. 8
II. -10
III. -12
II only
III only
II and III only
I and III only
I, II, and III
Solution:
Let’s solve the inequality for x.
Using the patterns we observed earlier, since , |x| > 10.
In other words, either . The only choice that works is -12 because -12 is less than -10. The choices 8 and -10 are neither greater than 10 nor less than -10.