Question

If f(x) = 1/3x+13, then f^-1(x) =??​

Answer 1

Explanation:

Given

f(x) = 1/3x + 13

f^-1(x) = ?

Now

Let y = f(x)

or y = 1/3x + 13

Interchanging the role of x and y

x = 1/3y + 13

x - 13 = 1/3y

y = x - 13

3

Therefore f^-1(x) = x - 13

3

Hope it will help you.