The curve of the graph in question is not steep enough to represent this quadratic equation. This equation states that $\displaystyle{y}={4}{{x}}^{{2}}\usepackage{cmbright}\Huge\$ , which means $\displaystyle{y}={4}\usepackage{cmbright}\Huge\$ when $\displaystyle{x}={1}\usepackage{cmbright}\Huge\$ ; this is not shown on the graph.