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 < 2x + 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.