SOLUTION: Pleas help me find the inverse of the one-to-one function, and write the inverse in function notation (f ^ -1) 1) f (x) = ln (x) -3 2) f (x) = 2 + ln x thanks!

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Pleas help me find the inverse of the one-to-one function, and write the inverse in function notation (f ^ -1) 1) f (x) = ln (x) -3 2) f (x) = 2 + ln x thanks!      Log On


   

Question 758018: Pleas help me find the inverse of the one-to-one function, and write the inverse in function notation (f ^ -1)
1) f (x) = ln (x) -3
2) f (x) = 2 + ln x
thanks!
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Helping with #1, f+%28x%29+=+ln+%28x%29+-3

Find g(x) so that f%28g%28x%29%29=ln%28g%28x%29%29-3=x
ln%28g%28x%29%29=x%2B3
e%5E%28ln%28g%28x%29%29%29=e%5E%28x%2B3%29
g%28x%29=e%5E%28x%2B3%29

Expecting g(x) is the inverse of f, f%5E-1%28x%29=e%5E%28x%2B3%29