SOLUTION:

Question 953955:
Found 2 solutions by rfer, Alan3354:
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
1)=2
2)=4
3)=1
4)=4
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
In which quadrant would you find each point?
1.(-6,4.5) Q2
2. (0,-8) Q4
3.(7.2,3.5) Q1
4.(-12,-0.9) Q3