3 1/2 = 7/2 
so y+7/2 = 6
y=6-7/2 = 12-7 / 2 = 5/2 = 2 1/2
        
             
        
        
        
It’s -4 because it’s a negative slope first of all cause it’s going down, second you can see it goes down 4 then right 1 so the answer would be -4 :)
        
             
        
        
        
1 inch is about 2.54 centimeters. 
So 5 inches is 12.7 centimeters. To find the answer you have to multiply 12.7×5=12.7
        
             
        
        
        
Answer:
y=2x+4
Step-by-step explanation: