Question

Find the inverse of the function:
f(x) = 3x + 6
​

Answer 1

x = -2

Explanation:

Pull out like factors :

-3x - 6 = -3 • (x + 2)

Solve : -3 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solve : x+2 = 0

Subtract 2 from both sides of the equation :

x = -2

Answer 2

The inverse of the funtion is f^-1(x)= x-6 over 3

Have a lovely day :)