Rewrite the equation as $\displaystyle{y}={3}{x}+{1}\usepackage{cmbright}\Huge\$ . The slope for a line written in the form $\displaystyle{y}={m}{x}+{b}\usepackage{cmbright}\Huge\$ is m. Therefore the slope, m, is $\displaystyle{3}\usepackage{cmbright}\Huge\$ .