When $\displaystyle{x}={3}\usepackage{cmbright}\Huge\$ and $\displaystyle{y}=-{2}\usepackage{cmbright}\Huge\$ then $\displaystyle{y}-{3}=-{5}\usepackage{cmbright}\Huge\$ and $\displaystyle{4}{\left({x}+{2}\right)}={20},\usepackage{cmbright}\Huge\$ so $\displaystyle{y}-{3}\ne{4}{\left({x}+{2}\right)}\usepackage{cmbright}\Huge\$ when $\displaystyle{\left({x},{y}\right)}={\left({3},-{2}\right)}\usepackage{cmbright}\Huge\$ and therefore (3, -2) does not lie on the line.