I believe the answer would still be 0 because 1/3 of 0 is 0
        
             
        
        
        
Answer:
My explanation --> 
Step-by-step explanation:
Go over to the left on the -4 and up 5 times and mark a dot on it. 
Next, go up half a mark from 0 and put a dot there.
Then, go over to the left between the -2 and -4 and go up 5 times.
Lastly, from the 0, go down half way until the next horizontal line and place a dot there. 
 
        
             
        
        
        
M = (y2 - y1) / (x2 - x1) 
m = (-2 - 2) / (4 - 0) 
m = -4 / 4
m = -1 
The slope of the line that goes through (0, 2) and (4, -2) is -1. 
        
                    
             
        
        
        
Answer: 7
7 is the middle number when the number are out from least to greatest. Hope that helps!!