You may want to review inequalities and equations with two variables first.

Inequalities with two variables are just like equations with two
variables, except that they're inequalities. You just put the
values of *x* and *y* in where you see those letters and
see if it's right or not.

For example, suppose you're asked whether (−1, 1) is a
solution of −1 ⁄ 4 < 2*x*
+ *y* − 2. You need to remember that (−1, 1)
means *x* is −1 and *y* is 1. (Yes, I know; this
looks exactly like an interval, which would mean something
completely different. You can tell the difference because there
are 2 variables in the problem. With more than one variable, it
doesn't make sense to talk about intervals.) So you put in
−1 where you see *x* and 1 where you see *y*. This
gives you −1 ⁄ 4 < −3. This is
wrong, so the answer is no.