Question

if x and y are directly proportional then the value of x y x-54 18 x y 18 y 36​

Answer 1

Step-by-step explanation:

(i)

Clearly, xy=39=515=824=1133=2678=13(constant)Therefore, x and y are proportional.Clearly, xy=39=515=824=1133=2678=13(constant)Therefore, x and y are proportional.

(ii)

 Clearly, xy=2.510=416=7.530=1040=14, while 1442=13i.e., 2.510=416=7.530=1040is not equal to 1442.Therefore, x and y are not proportional.Clearly, xy=2.510=416=7.530=1040=14, while 1442=13i.e., 2.510=416=7.530=1040is not equal to 1442.Therefore, x and y are not proportional.

(iii)

 Clearly, xy=515=721=927