Correct. Since the relationship between $\displaystyle{x}\usepackage{cmbright}\Huge\$ and $\displaystyle{y}\usepackage{cmbright}\Huge\$ is $\displaystyle{y}={k}{x},\usepackage{cmbright}\Huge\$ we know that $\displaystyle-{5}={k}\cdot{2}\usepackage{cmbright}\Huge\$ (using row 1 of the table), so $\displaystyle{k}=-{2.5}.\usepackage{cmbright}\Huge\$ Then when $\displaystyle{x}={5},{y}=-{2.5}\cdot{5}=-{12.5}.\usepackage{cmbright}\Huge\$