Which of the following points are in the third quadrant of the xy-plane? Check
all that apply.

Step-by-step explanation:
The x and y-values in the 3rd quadrant are both negative.
Remember this:
1st quadrant- x= + y= +
2nd quadrant- x= - y= +
3rd quadrant- x= - y= -
4th quadrant- x= + y= -