Question

X and y vary directly x=6 and k=7 find y then find y when x=12

Answer 1

y=−3.5

Explanation:

Answer 2

Explanation:

`x \: dirctly \: as \: y \\`

`x = ky \\ (k \: is \: constant)`

compare it as equation 1

putting values

`6 = 7 y`

`(6)/(7) = y`

`0.8571 = y`

and now y when x=12 and k is same

from equation 1

`12 = 7y`

`(12)/(7 ) = y`

`1.714 = y`