Question

If f(3b-1) = 9b-1, find one possible expression for f(x)

Answer 1

f(x) = 6x+7 u could us this I belief

Answer 2

The value of f(x) is 3x + 2.

Explanation:

Given equation,

`f(3b-1) = 9b-1----(1)`

For finding f(x),

Suppose, 3b - 1 = x,

⇒ 3b = x + 1

⇒ 9b = 3(x + 1)

⇒ 9b = 3x + 3

From equation (1),

`f(x) = 3x + 3 - 1`

`\implies f(x) = 3x + 2`

Hence, the value of f(x) would be 3x + 2.