2) y=mx+b 
y=-1/2x-2 
b=-2 & m= -1/2 down negative one, right two (+)
        
                    
             
        
        
        
Step-by-step explanation:
you must do by unitary methods, first find smaller quantity and then multiply with remaining one. 
 
        
             
        
        
        
Answer: x=6; straight vertical line
Step-by-step explanation:
Because i know, jk. Just took the test, & used Desmos - Alex
 
        
             
        
        
        
Answer:
6 
Step-by-step explanation:
Put the values of m and n into the equation. 
2m ÷ n = 2(-6) ÷ -2
Evaluate. 
2(-6) ÷ -2 = -12 ÷ -2 
Further evaluate. 
-12 ÷ -2 = 6