Incorrect. Points that are solutions to the inequality will have a $\displaystyle{y}\usepackage{cmbright}\Huge\$ coordinate that is greater than or equal to the $\displaystyle{x}\usepackage{cmbright}\Huge\$ coordinate. Check to make sure that you've included only coordinates where the $\displaystyle{y}\usepackage{cmbright}\Huge\$ coordinate is greater than or equal to the $\displaystyle{x}\usepackage{cmbright}\Huge\$ coordinate.