can someone please please please help me

19. Which of the following tables represents a proportional relationship?

A.
x 28 29 30 31
y 84 63 42 21

B.
x 28 32 36 40
y 84 98 112 126

C.
x 7 8 9 10
y 21 42 63 84

D.
x 7 14 21 28
y 21 42 63 84

Question

can someone please please please help me 

19.  Which of the following tables represents a proportional relationship?  


  A.   
x 28 29 30 31 
y 84 63 42 21 


 


  B.   
x 28 32 36 40 
y 84 98 112 126 


 


  C.   
x 7 8 9 10 
y 21 42 63 84 


 


  D.   
x 7 14 21 28 
y 21 42 63 84

anonymous · Answer

Do you know what is meant by "proportional relationship?"

anonymous · Answer

no can u tell me

anonymous · Answer

It means that two things are related by multiplying by a specific number.

y=2x, for example, is a proportional relationship. We can find the corresponding value for y simply by multiplying a given x by 2.

y=8-2x is not, however.

Which of these sets shows a relationship like this?

anonymous · Answer

D