A point \((x, y)\) lies in:
- First quadrant if \( x>0 \) and \( y>0 \).
- Second quadrant if \( x<0 \) and \( y>0 \).
- Third quadrant if \( x<0 \) and \( y<0 \).
- Fourth quadrant if \( x>0 \) and \( y<0 \).
Here, \( x = -2\sqrt{2}<0 \) and \( y = -2<0 \), so the point lies in the third quadrant.