Simple Inequalities on a Number Line
Observe the differences in the graphs when <, ≤, =, >, and ≥ are used.
Multiplying Inequalities by Negative Numbers
Investigate the effect of multiplying the numbers on a number line by a negative number.
Linear Inequalities in One and Two Variables: Rays and Half Planes
Introduce linear inequalities by relating them to simple inequalities on the number line.
Linear Inequalities in Two Variables
Learn the basics of graphing linear inequalities.
Exploring Graphs of Inequalities
Test ordered pairs to determine if they are part of the solution set to an inequality.
Two-Variable Linear Inequalities
Graph, solve and write two-variable linear inequalities.