Explanation
when you have two lines in a graph, the solution is the point where the line intersect each other, so to solve this we need to find that point
so, the answer is

I hope this helps you
 
        
             
        
        
        
Answer:
The slope would be 4/-3
Step-by-step explanation:
8-(-4)
 = 4/-3
2-5
 
        
             
        
        
        
Maybe 45 but get someone else to check
        
                    
             
        
        
        
((3-.5)/.5) x 100 
that will give you your answer
        
             
        
        
        
Answer:
5: yes he could easily chose bigger looking families to get the result he wants
6: no he has isn't choosing people and has no idea the answers presumibly
7: no it's not something that they could choose or know what is going to happen, therefore or can't be biased.
I'm not sure if I did it right but I think that's what it's asking sorry if I'm wrong