Question

Given f(x) = (x-1)/(2) , solve for f^-1(5).

Answer 1

@Loser66 Please help!

Answer 2

\(\dfrac{x-1}{2}=5\)--> x =?

Answer 3

x=11 right?

Answer 4

yes, now this is the rule:
\(f(\color{red}{x}) = 5\rightarrow f^{-1}(5) =\color{red}{x}\) in this case, \(f^{-1}(5) =???\)

Answer 5

whaaat? above you said "x =11, right?" now you said 10?? where does 10 come from??

Answer 6

lol i meant to type 11

Answer 7

ok, correct

Answer 8

so 11 is the answer?

Answer 9

yup

Answer 10

thanks so much!