In the following table, does x and y vary directly with each other?

x

5

7

9

11

y

15

21

36

33

 

Asked by Topperlearning User | 2nd Sep, 2015, 01:20: PM

Expert Answer:

We know that two quantities x and y vary directly if the ratio remains constant, so we find the ratio in each case.

x

5

7

9

11

y

15

21

36

33

Ratio

 

 

 

Clearly, the ratio is not same for all the cases.

Thus x and y are not varying directly.

Answered by  | 2nd Sep, 2015, 03:20: PM