Systems of Linear Inequalities

Overview

Goal. Solve a system of linear inequalities by graphing each one — correct boundary line, correct side — and reading the solution as the overlapping region where both shadings hold at once.

Solution of a system of linear inequalities (definition). An ordered pair that makes BOTH inequalities true. On the graph, it is any point in the overlapping shaded region, including points on a solid boundary that satisfies the other inequality.

Boundary lines solid or dashed; test points choose the side; overlap is the solution.

Lesson Notes

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Notes page

Lesson Video

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Interactive Activity

Goal. Solve a system of linear inequalities by graphing each one — correct boundary line, correct side — and reading the solution as the overlapping region where both shadings hold at once.

Solution of a system of linear inequalities (definition). An ordered pair that makes BOTH inequalities true. On the graph, it is any point in the overlapping shaded region, including points on a solid boundary that satisfies the other inequality.

Systems of Linear Inequalities — Interactive ActivityOpen ›