Divide both sides by 6: $\displaystyle\frac{{{6}{b}}}{{{6}}}>\frac{{-{18}}}{{{6}}}\usepackage{cmbright}\Huge\$ , so $\displaystyle{b}>-{3}\usepackage{cmbright}\Huge\$ . Since $\displaystyle-{3}\usepackage{cmbright}\Huge\$ is not part of the solution, the graph will have an open endpoint at $\displaystyle-{3}\usepackage{cmbright}\Huge\$ . The numbers greater than $\displaystyle-{3}\usepackage{cmbright}\Huge\$ are represented by points to the right of $\displaystyle-{3}\usepackage{cmbright}\Huge\$ , and this is what is shown in the graph.