Answer:
You need to attach a picture or something. 
 
        
             
        
        
        
To represent the change in points, you can think of it in two ways:
1.  You will go down 25 points for every wrong answer, so -25 + -25 + -25 would represent what is happening.  They are all negative, so you keeping moving down in value.  
2.  You can also think of this as 3 groups of -25. 
Both answers are -75.  The answer is negative because the change was down in points.
-75 is the integer that represents this situation.
        
             
        
        
        
For the answer to the question above, are your diagram shows that the horizontal lines and is a vertical line segment where as FB: 3 , If C is equaled to 3, so the coordinate of the point D would be (-6,-4).I hope my answer helped you.
        
                    
             
        
        
        
Your answer is D 
hope this helps