First, this is a piecewise (-defined) function, not a "function inequality".
To find the function's value at x = 2, find which interval x is in... it's the middle one...
For every x in this interval, the function's value is 1.
I asked because I didn't know what it was or how to deal with it. Thanks to thechaz, I'll go look up piecewise so I won't be dumbfounded the next time I see one.
Googled it; and I'm an idiot.