Question

Given the function f(x) = 3(x+2) − 4, solve for the inverse function when x = 2.

Answer 1

Simplify :

f(x) = 3x + 2 -4
f(x) = 3x - 2

Let f(x) = y

y = 3x - 2

y + 2 = 3x

x = (y+2)/3

swap x, y

y = (x+2)/3 (That's the inverse)

At x = 2

y = (2+2)/3 = 4/3

Answer 2

Forgot to mention that the function isn't one to one

f(-x) = -3x -2 (not equal to ) f(x)