Watch Inequalities: Solving Linear Inequalities in One and Two Variables

Real-world problems in inequalities are solved using the TI-Nspire graphing calculator. These include inequalities with one or two variables and situations such as predicting the break-even point of a start-up business. Basic vocabulary for dealing with inequalities is introduced and illustrated. Two problems are illustrated without comment while others are developed step-by-step from the definition of x and y variables to the development of set solutions.