Question

f(x)=3(x+4)-x-12f ( x ) = 3 ( x + 4 ) − x − 12 represents a direct proportionality. Find the constant of proportionality, kk .

Answer 1

The constant of proportionality is 2.

Explanation:

Given :
`f(x)=3(x+4)-x-12`

To find = Constant of proportionality = k= ?

Solution :

`f(x)=3x+12-x-12`

`f(x)=2x`

`f(x)=k* x`

Direct proportion is represented by :
`(f(x)\propto x)`

On comparing , we get:

k = 2

The constant of proportionality is 2.