Answer:
B. Graph 2 represents a proportional relationship, but graph 1 does not.
Step-by-step explanation:
All proportional relationships pass through the origin. Graph 2 does but Graph 1 does not. Additionaly, Graph 2 is a straight line that represents a proportional relationship. Another way to find out if it is proportional is to find the constant of proportionality by dividing the y by the x in different parts of the line. The numbers should all have the same constant of proportionality.
Examples (all found in Graph 2): 
15/3 = 5
 10/2 = 5
 5/1 = 5
 
        
                    
             
        
        
        
The answer is negative twenty five. By the way, if that is you in the picture, you are beautiful.
        
             
        
        
        
32/45 is the answer I believe
        
                    
             
        
        
        
0.008 i think this is the answer