The solution to this compound inequality is $\displaystyle{m}\le-{2}\usepackage{cmbright}\Huge\$ and $\displaystyle{m}<{2}\usepackage{cmbright}\Huge\$ . Their graphs intersect for $\displaystyle{m}\le-{2}\usepackage{cmbright}\Huge\$ , so any value less than or equal to $\displaystyle-{2}\usepackage{cmbright}\Huge\$ is a solution.