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.