Can y’all please help meeeee i would really appreciate it :)

Question

asked Apr 12, 2021 143k views

2 Answers

Blue Raspberry · Answer 1 · 2021-04-15T17:20:01+0000

Answer:

f^(-1) (x) = (x - 2)² - 6

Explanation:

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

y =
√(x+6) + 2 ( subtract 2 from both sides )

y - 2 =
√(x+6) ( square both sides )

(y - 2)² = x + 6 ( subtract 6 from both sides )

(y - 2)² - 6 = x

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

f^(-1) (x) = (x - 2)² - 6