The straight line has a slope of $\displaystyle\frac{{1}}{{2}}\usepackage{cmbright}\Huge\$ and a $\displaystyle{y}\usepackage{cmbright}\Huge\$ -intercept of -2. The parabola opens upward and has a $\displaystyle{y}\usepackage{cmbright}\Huge\$ -intercept of 2.