Correct. The intercept form of the equation is $\displaystyle{y}={9}{\left({x}-{3}\right)}{\left({x}+{3}\right)}\usepackage{cmbright}\Huge\$ . As a result, $\displaystyle{x}\usepackage{cmbright}\Huge\$ could be equal to +3 or -3 when $\displaystyle{y}={0}\usepackage{cmbright}\Huge\$ . The roots of the equation are $\displaystyle{\left({3},{0}\right)}\usepackage{cmbright}\Huge\$ and $\displaystyle{\left(-{3},{0}\right)}\usepackage{cmbright}\Huge\$ .