1
Given the function f(x) =x+3 witch of the following represents f-1(x)?

1 Answer

2

Answer:

f^{-1}(x) = x - 3

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = x + 3 (subtract 3 from both sides )

y - 3 = x

Change y back into terms of x with x = f^{-1}(x) , thus

f^{-1}(x) = x - 3

Edit
avatar
Georgianna Davis
15.5k 3 10 26
answered 6 months ago