Answer:
so line CD
Step-by-step explanation:
 a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints.
 
        
                    
             
        
        
        
Answer:
y = -2x + 1
  
Step-by-step explanation:
Then any equation of the form y = -2x + b, b≠1 will create a system with no solution.  Hence the values of m and b are m = -2, b ≠ 1. 
hope i helped
 
        
                    
             
        
        
        
ANSWER TO QUESTION ONE IS   5   
5x2+5=15   
5-4=1
15x1=15
QUESTION 2 
X = 20
IDK 3 :(
 
        
             
        
        
        
y = -2/3x + 5
this is the slope intercept. -2/3 is the slope and 5 is where it intercepts the y axis.
hope this helps