In this lesson, students learn how to solve and graph inequalities on a number line. The instructor provides three different methods for solving the inequalities, emphasizing the importance of switching the inequality symbol when dividing by a negative number. After finding the solutions, the instructor demonstrates how to graph them on a number line. The lesson concludes with a final problem, where the instructor shows how to take the opposite of everything to solve the inequality.
Solving and graphing inequalities on a number line.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com