Answer:
B
Step-by-step explanation:
Recall that functions are defined only if for each value in the domain produces one and only one value in the range.
If we view the relations in the questions as x-y coordinates, this means that for every x-value, you can only have one y-value
Lets evaluate the options:
A) we can see that for x = -3, this gives 2 possible values for y i.e (-3,4) and (-3,8) (hence this is not a function)
C) we can see that for x = 3, this gives 2 possible values for y i.e (3,-8) and (3,8) (hence this is not a function)
D) we can see that for x = -3, this gives 2 possible values for y i.e (-3,4) and (-3,8) (hence this is not a function)
the only choice where this doesn't occur is choice B
 
        
             
        
        
        
I don’t know how to do these
        
             
        
        
        
The movie should be 2 hours and 15 minutes long.
 
        
                    
             
        
        
        
The slope is -4/3 because it's the coefficient of x
        
                    
             
        
        
        
The constant in this case is the number without the variable, making the answer A)3.