Hey there!! 
Remember : R = range and f ( x ) = y and y = range 
R : { 5 , 6 , 7 , 8 } 
( 1 ) 5 = 1 x / 2 + 4 
... 5 - 4 = x / 2 
... 1 = x / 2 
... x = 2 = ( 2 , 5 ) 
( 2 ) 6 = x / 2 + 4 
... 2 = x / 2 
... x = 4 = ( 4 , 6 ) 
( 3 ) 7 = x / 2 + 4 
... 3 = x / 2 
... x = 6 = ( 6 , 7 ) 
( 4 ) 8 = x /2 + 4 
... 4 = x/2 
... x = 8 = ( 8 , 8 ) 
Hope my answer helps!
 
        
             
        
        
        
Answer: 0
Step-by-step explanation:
The line runs through the coordinate (0,0), rather than starting at (0,2), (0,4), or (0,8). 
Always remember that you read coordinates as (x,y) which.. 
X is how many spaces right or left 
Y is how many spaces up or down.
 
        
                    
             
        
        
        
Answer:
70
Step-by-step explanation:
26 times 2 the plus 18 and you get 70 hope this helps