What is the answer for this one ?

Option B:

Solution:

Given function is .

To find the inverse of the function:

Let y = f(x)

Subtract 3 on both sides of the equation, we get

Divide by –14 on both sides of the equation.

Negative sign in the denominator go to the numerator , we get

We know that y = f(x)   ⇒

Substitute

Since the choice of the variable is arbitrary, we can write this as

Hence Option B is the correct answer.