Answer:
Given information: WY=ZX, A is the midpoint of WY and A is the midpoint of ZX.
To prove :  WA =ZA
Proof:
A is the midpoint of WY, it means A divides WY in two equal parts.

So, WY is twice of WA.
 .... (1)
            .... (1)
A is the midpoint of ZX, it means A divides ZX in two equal parts.

So, ZX is twice of ZA.
 ... (2)
         ... (2)
 (Given)
                        (Given)
Substitute the values from equation (1) and (2).

Divide both sides by 2.

Hence proved.
 
        
             
        
        
        
June 19th 2006 specifically a monday
        
                    
             
        
        
        
Answer:
y=0.5x+40
Step-by-step explanation:
Copy the  equation. 
x-2y=8
Subtract x from both sides.
-2y=-x-8
Divide both sides by -2.
y=0.5x+4
Now we know the slope is 0.5.
Any line with a slope of 0.5 will be perpendiculr to the original line.
One that you can use is y=0.5x+40.
 
        
             
        
        
        
1/2 and 2/4 I believe those are right
        
                    
             
        
        
        
D is the answer for this question:))