3.3 Systems of Inequalities Learning goals graph the solutions to a linear inequality in two variables as a half-plane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of the corresponding half-planes solve systems of linear equations exactly and approximately, focusing on pairs of linear equations in two variables represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or non-viable options in a modeling context

Ex 1

Ex 2

Ex 3

Ex 4

Ex 5 Jenna spends at most 150 hours a night on math and science homework. She spends at least 60 min on math. Write and solve a system of inequalities to model how she allots her time for these two subjects.

Ex 6 Consider the following questions Is the solution of a system of linear inequalities the union or the intersection of the solutions of the two inequalities? Explain. Explain how the graphical solution of a system of inequalities is different from the graphical solution of a system of equations.