[tex]\begin{gathered} \text{Quadrant I: x>0 y>0} \\ \text{Quadrant II: x<0 y>0} \\ \text{Quadrant III: x<0 y<0} \\ \text{Quadrant IV: x>0 y<0} \end{gathered}[/tex][tex]\begin{gathered} (9,-1)\to\text{ Quadrant IV} \\ (1\frac{1}{3},-1\frac{1}{3})\to\text{Quadrant IV} \\ (\frac{1}{3},2\frac{1}{3})\to\text{Quadrant I}_{} \\ (-1\frac{1}{3}3\frac{1}{3})\to\text{Quadrant II} \\ (-3,-10)\to\text{Quadrant III} \\ (-3\frac{1}{3},-1\frac{1}{3})\to\text{Quadrant III} \end{gathered}[/tex]