Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.5 - Page 573: 87

Please see step.by.step.

A linear inequality in two variables can be written in the form $Ax+By > C, \qquad e.g.\quad 2x + y > 1$ $Ax+By \geq C, \qquad e.g.\quad 2x + y \geq 1$ $Ax+By < C,\qquad e.g.\quad 2x + y < 1$ or $Ax+By \leq C\qquad e.g.\quad 2x + y \leq 1$