Answer:
Domain? Do you by chance mean quadrant? If so it's the 3rd quadrant. 
Step-by-step explanation:
In the future try to imagine quadrant 1 in the top right and then going counter-clockwise! It'll help!
 
        
             
        
        
        
Answer:
1st blank: substitution property of equality
2nd blank: linear pair theorem
3rd blank: substitution property of equality 
Step-by-step explanation:
<u>1st blank</u>
∠EIJ ≅ ∠GJI (eq. 1)
∠EIJ ≅ ∠IKL (eq. 2)
∠GJI ≅ ∠JLK (eq. 3)
Substituting eq. 3 into eq. 1:
∠EIJ ≅ ∠JLK
and then, substituting eq. 2:
∠IKL ≅ ∠JLK
which means that m∠IKL = m∠JLK 
<u>2nd blank</u>
The Linear Pair Theorem states that two angles that form a linear pair are supplementary
<u>3rd blank</u>
m∠JLK + m∠JLD = 180°
Substituting with the previous result:
m∠IKL + m∠JLD = 180°
 
        
             
        
        
        
Step-by-step explanation:
-b/2a
a=-6 and b=6
-(6)/2(-6)
=1/2 or 0.5
 
        
             
        
        
        
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