Algebra/Graphing Inequalities

Inequalities in 2 variables


Linear inequalities in 2 variables are typically in the form of $$y<mx+b \!\ $$, where m is the slope of the line and b is the y-intercept.

Graphing an inequality is easy. First, graph the inequality as if it were an equation. If the sign is ≤ or ≥, graph a normal line. If it is &gt; or &lt;, then use a dotted or dashed line. Then, shade either above or below the line, depending on if y is greater or less than mx + b.