Sorry I was moving around taking the picture and my handwriting is sloppy. But I hope you understand how I got the answer
 
        
        
        
Answer:
B
Step-by-step explanation:
Since the slope is going down the slope is negative and since 50 is positive when 0 its positive.
Also to find slope you do y/x
25/100=1/4 and since its a decreasing pattern the slope is -1/4
 
        
             
        
        
        
Step-by-step explanation:
3y + x = 12
When y = 3, we have 3(3) + x = 12.
=> 9 + x = 12, x = 3.
 
        
             
        
        
        
Is there meant to be a picture attached with this?
        
             
        
        
        
Answer:
Step-by-step explanation:
The translation vector < 4, - 2 > means each point is being moved 4 units to the right and 2 units down. 
X(0, 3) ------> X' ( 0 + 4, 3 - 2 ) = X'(4, 1) 
Y( - 1, 1) ------> Y' ( - 1 + 4, 1 - 2 ) = Y'(3, - 1) 
Z( - 3, 4) -----> Z' ( - 3 + 4, 4 - 2 ) = Z'(1, 2)