Correct. Since the graphed line has slope $\displaystyle-\frac{{1}}{{2}}\usepackage{cmbright}\Huge\$ (it goes through the points (0, 2) and (2, 1)), any line perpendicular to it will have slope 2 (the opposite reciprocal of $\displaystyle-\frac{{1}}{{2}}\usepackage{cmbright}\Huge\$ ).