Make a table of values and evaluate different inputs for the function. Each row in the table is an ordered pair, which gives you a point on the graph. Some of these are $\displaystyle{\left(-{4},{5}\right)}\usepackage{cmbright}\Huge\$ , $\displaystyle{\left(-{2},{2}\right)}\usepackage{cmbright}\Huge\$ , $\displaystyle{\left({0},{1}\right)}\usepackage{cmbright}\Huge\$ , $\displaystyle{\left({2},{2}\right)}\usepackage{cmbright}\Huge\$ , and $\displaystyle{\left({4},{5}\right)}\usepackage{cmbright}\Huge\$ . These points are all on the graph.