Posted by **kristie** on Friday, July 21, 2006 at 1:50pm.

Could you show me step by step how to find the inverse of this problem:

log with base of 2 (x+1)

Thanks!

It is not clear what the problem is. You are given a function of x. Let's calli it y. Are you trying to come up with an equation for x in terms of y?

If log(base2)of (x+1) = y,

then 2^y = x+1 and

x = 2^y - 1

the exact problem was :

find f^-1(x).

f(x) = log(base2)(x+1)

"find f^(-1)(x)" means find the inverse function of f(x).

I believe that my previously derived fomula for x in terms of y IS the inverse function. Just relabel it as

f^-1 (x) = 2^x -1

f^(-1) of (f(x)) = x

give mats formula

i could answer that but can you tell me what this sign^ stands for please!!!!!

## Answer this Question

## Related Questions

- alg 2. - can someone please show me step by step how to do this problem... 1/...
- Algebra 2 - Can you please explain step by step on how to do this problem? ...
- Algebra 2 - Can you please explain step by step on how to do this problem? ...
- Algebra - Please show me step by step on solving this problem? log₅(2x-9...
- 5th grade math - I need help with this problem ! 5 2/5 - 3 4/5= ? 6 1/10 - 3 4/...
- Math - If y varies directly as x and y=3 when x=10, find x when y=8? Can you ...
- physics - A log is floating on swiftly moving water. A stone is dropped from ...
- Algebra - will you please show me step by step in solving: 1/2 log b + 3 log c. ...
- Pre-Algebra - Can anyone show me step by step how to solve this problem? 26cm/s...
- Pre-Algebra - Can anyone show me step by step how to solve this problem? 26cm/s...