The reason they call an ordered pair by that name is that the values in the ordered pair are always in the same order, namely . So take the value from the ordered pair that represents the value of for that point and substitute it for in the inequality. Do the same thing for the value in the ordered pair that represents . Do the indicated arithmetic. If the process results in a true statement, then the given ordered pair IS an element of the solution set of the inequality. If false, then not.
John
My calculator said it, I believe it, that settles it
