Since the function is in the form $\displaystyle{f{{\left({x}\right)}}}={{b}}^{{x}}\usepackage{cmbright}\Huge\$ , where $\displaystyle{b}>{1}\usepackage{cmbright}\Huge\$ , its graph will increase from left to right, and this one does. But all the function values are negative. The correct graph must be increasing with positive function values.