Students will learn how to graph linear inequalities on the coordinate plane. First, students will learn how to graph linear inequalities which are either horizontal or vertical lines. Students will also learn how to determine such an inequality from its graph. Then students will learn how to graph linear inequalities in slope-intercept form, point-slope form, and standard form. Again, students will also learn how to determine such inequalities from their graphs. Review the formulas for the \(x\)-intercept, \(y\)-intercept, and slope, for standard form. Remind students that we can use any two of these three to graph a line in standard form, without converting to slope-intercept form.
Next, give your students these challenges:
Conclude by leading this investigation:
Solidarity – Poland, 1981 (addition, logic)