Respuesta :
Answer:
Step-by-step explanation:
If on increasing ( decreasing ) x there is increase ( decrease) in y
that is if there is same change in one variable on changing another in same proportion . Then x and y are said to be in direct proportional.
On the contrary
If on increasing ( decreasing ) x there is decrease(increase) in y
that is if there is same change in one variable on changing another in same proportion . Then x and y are said to be inversely proportional.