An inequality can be defined as a difference in size, degree, circumstances, and so forth. It can also mean lack of equality. Some synonyms are: imbalance, inequality, inconsistency,bias .prejudice and discrimination.
A strict inequality.
On a TI-84, press APPS. Scroll down and choose Inequalz. The calcuator will say "INEQUALITY GRAPHING" and "PRESS ANY KEY" (and some other stuff). Press any key. If the calculator says INEQUAL RUNNING choose continue. If the calulator says CONFLICTING APPS, then choose "Quit APPs listed below. When you press Y= (you will already be in the Y= screen after choosing Inequalz), you will see a little X= in the top left-hand corner. Use the up arrow to highlight it and press ENTER to get to the X= equations. You can only graph numbers in the X= equations; you cannot put variables in. If you do they will turn into numbers. To turn of the X= (and the inequaity signs at the bottom of the screen), press APPS, choose Inequalz, and choose "Quit Inequal".