The point (−3, −7) has a negative x-coordinate and a negative y-coordinate. According to the labeling of the quadrants:
- Quadrant 1: (positive, positive)
- Quadrant 2: (negative, positive)
- Quadrant 3: (negative, negative)
- Quadrant 4: (positive, negative)
Since both coordinates of the point (−3, −7) are negative, it is located in **Quadrant 3**.