Answer:
3x+12y+4 -- is the simplified version, variables would be x and y
 
        
             
        
        
        
Isolate x
So xy - 2 = k
Then
xy = k + 2
x = (k+2)/y
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
ANSWER
D 5
EXPLANATION
The diagonals bisect each other so,
AE=CE
This implies that 
3x+4+3x+4=38
6x+8=38
Group similar terms 
6x=38-8
6x=30
x=5
 
        
                    
             
        
        
        
Answer:
(3, -8) and (2, -10)
Step-by-step explanation:
Given


Required
Select the true coordinate points in (3, -8) (2, 5) (-5, 1) (10, 3) (2, -10)
(3, -8) 
x = 3 and y = -8



 --- True
 --- True



 --- True
 --- True
(2, 5) 
x = 2 and y = 5



 --- False (No need to check the other inequality)
 --- False (No need to check the other inequality)
(-5, 1) 
x = -5 and y = 1


 --- True
 --- True


 --- False
 --- False
(10, 3) 
x = 10 and y = 3


 --- False (No need to check the other inequality)
 --- False (No need to check the other inequality)
(2, -10)
x = 2 and y = -10


 --- True
 --- True


 --- True
 --- True
Hence, the solution to the inequalities are:
(3, -8) and (2, -10)