Question

Soulotion to equation if y is =15 when x=2 ,find y when x=8

Answer 1

The value of y for x = 8 is 60 .

Explanation:

Given expression as :

For x = 2 , y = 15

Let the equation be written with constant k'

So, y = k x

Or, k =
`(y)/(x)`

∴ k =
`(15)/(2)`

Now, again

For x = 8

equation can be written as

y = k x

Or, y =
`(15)/(2)` × 8

Or, y =
`(15* 8)/(2)`

∴ y = 15 × 4

I.e y = 60

Hence The value of y for x = 8 is 60 . Answer