If I am correctly understanding the question, I think the length of the line segment would be 4AB 
Step-by-step explanation:
25% = 1/4
AB = 1/4
100% = 4/4
AB*4 = 4AB
Multiply AB by 4 to find the value that 100% would equal, resulting in 4AB.
 
        
             
        
        
        
J is your answer. 
Slope is rise over run + your Y intercept. 
Your y- intercept is the point in the graph in which the line passes through, the line passes through -2, so you know -2 is going to be your answer at the end. And slope is rise/run. 
From one point to another, you rise 1 time , and run over 3 so you know your answer is 
y = 1/3x - 2 
hope this helps :)
        
             
        
        
        
Answer:
I'm sorry I don't have an answer but for all future math work you should download photomath on your phone it's rly good