This is a graph of the equation $\displaystyle{y}={{x}}^{{2}}+{1}\usepackage{cmbright}\Huge\$ . If $\displaystyle{x}={0}\usepackage{cmbright}\Huge\$ , then $\displaystyle{y}={1}\usepackage{cmbright}\Huge\$ . Since the $\displaystyle{{x}}^{{2}}\usepackage{cmbright}\Huge\$ term is positive, the parabola opens upwrds.