Try this option:
if x+y=-9 is I (one)
and x+2y=-25 is II (two), then
if II-I, then (x+2y)-(x+y)=-25+9 ⇔ y=-16.
        
             
        
        
        
<h2>3</h2>
Step-by-step explanation:
The equation of line passing through the two points is 
When substituted,the equation becomes 
which when simplified is 
The line clearly passes through origin.
The distance between two points is 
Distance between origin and  is
 is  .
.
Distance between origin and  is
 is 
Scale factor is  
So,scale factor is 
which when simplified becomes 3. 
 
        
        
        
Yes..it does. To be a function, all the inputs (x's) have to be different numbers...there can be no repeating x's...there can be repeating outputs (y's)...just not the x's
        
             
        
        
        
Answer:
D
Step-by-step explanation:
-2 = 3(-1) +1 
-2 = -3 + 1
-2 = -2
 
        
                    
             
        
        
        
Answer:
im sorry idk this answer but lemme get your snap