Answer:
21. B. Graph Z
23. A. neither function nor relation
24. D. relation only
Step-by-step explanation:
21. Graph Z is the only graph which does not pass the vertical line test
23. The graph does not pass the vertical line test, AND it is not merely given x and y points like a relation. It is graphed as a squiggly line with no given x and y points, therefore you could not make a relation from it either.
24. There is an x value of -4 twice, meaning the set does not pass the vertical line test, HOWEVER, it is a given collection of x and y values, making it a relation.
I would appreciate brainliest, have an amazing day
 
        
             
        
        
        
Answer:
Ask: To check and make sure your answer is correct
Share: Subtracting a number is the same as adding its opposite. So, subtracting a positive number is like adding a negative; you move to the left on the number line. Subtracting a negative number is like adding a positive; you move to the right on the number line.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-4
Step-by-step explanation:
I hope this helps
 
        
             
        
        
        
The answer is 11225 i think 
hope it helps you
        
             
        
        
        
He made $600 profit on it. 3000 * .20 = 600