Step-by-step explanation:
4x hope this explanation will help 
 
        
             
        
        
        
The answer is yea yea yea yea yea
        
             
        
        
        
Whenever you have a root of sqrt #, you must have the matching - (or positive).
This is because when you take a square root you get two solutions a positive and a negative.
The answer is LETTER A
        
                    
             
        
        
        
Answer:
The answer is A
Step-by-step explanation:
The domain is all the X values and the range is all the Y values. You do this when finding the domain and range of given pairs or a table.