When $\displaystyle{x}={2}\usepackage{cmbright}\Huge\$ and $\displaystyle{y}=-{3}\usepackage{cmbright}\Huge\$ then $\displaystyle{y}-{3}=-{6}\usepackage{cmbright}\Huge\$ and $\displaystyle{4}{\left({x}+{2}\right)}={16},\usepackage{cmbright}\Huge\$ so $\displaystyle{y}-{3}\ne{4}{\left({x}+{2}\right)}\usepackage{cmbright}\Huge\$ when $\displaystyle{\left({x},{y}\right)}={\left({2},-{3}\right)}\usepackage{cmbright}\Huge\$ . Therefore (2, -3) does not lie on the line.