Question

help pleaseee @surjithayer

Answer 1

Let y=f(x)
\[x=f ^{-1}\left( y \right)\]
y=3x-3
solve for x and get the answer.

Answer 2

1 @surjithayer ?

Answer 3

3x=y+3
find x and then the required answer.

Answer 4

1/3 thats what i got

Answer 5

\[x=\frac{ 1 }{ 3 }\left( y+3 \right)\]

Answer 6

oo i see what i did wrong

Answer 7

now you can write
\[f ^{-1}\left( y \right)=\frac{ 1 }{ 3 }\left( y+3 \right)\]