Answer: 1, 2, 4, or 5
Step-by-step explanation: 
The relationship in #3 is a function because all the x values are distinct, that is, none are repeated. (Y values don't matter.)
A function will not repeat any x values so if your goal is for the relationship in #4 to NOT be a function, repeat one of the x values. Any one will work.
 
        
             
        
        
        
144 inches. 12 feet in one hour
12 inches per feet
12feet x 12 inches per foot= 144 inches
        
             
        
        
        
Answer:
18,0
Step-by-step explanation:
By useing desmos, the line has an x intercept of 18 making that the answer.