Because the graph of $\displaystyle{y}={\log}_{{b}}{x}\usepackage{cmbright}\Huge\$ for any $\displaystyle{0}<{b}<{1}\usepackage{cmbright}\Huge\$ has this general shape, this could be the graph of $\displaystyle{y}={\log}_{{\frac{{2}}{{5}}}}{x}\usepackage{cmbright}\Huge\$ . The correct answer is $\displaystyle{\log}_{{{3}}}{x}\usepackage{cmbright}\Huge\$ .