Chapter 3 Linear Systems and Matrices - 3.3 Graph Systems of Linear Inequalities - 3.3 Exercises - Skill Practice - Page 171: 21

See the graph

We graph the equations exactly like we did for the system of two inequalities. First graph $x \geq 2$ (blue) $x \geq 2$ (pink) and $4x+3y \lt 12$ (black) Using the shading on the attached graph, we know that the intersection of all three inequalities is the solution.