Answer:
epic
Step-by-step explanation:
epic
 
        
                    
             
        
        
        
Answer:
-7
Step-by-step explanation:
 
        
             
        
        
        
Answer: Yes
Step-by-step explanation:
To solve this, imagine you have a vertical line. You can use a ruler or something straight. Move the ruler across the screen. Does the ruler intersect 2 points at once? If so, then it is not a function. If it only intersects one point, then it is a function. 
Always remember: a function cannot have two x's with different y-values. 
Hope that helped!