Question

Given the function f(x) = log5(x + 1), find the value of f−1(2).
@Hitaro9

Answer 1

Oh. Is that an inverse function?

Answer 2

http://openstudy.com/users/isaiah.feynman#/updates/52b13d8ee4b03e81ff93c5b9
See my solution there.

Answer 3

@Hitaro9 yes I think so

Answer 4

This question is no different from yesterday's.

Answer 5

Procedure to find the inverse of a function. (This what I did)
Change f(x) to y
switch x and y
solve for y
the new function is the inverse.
Follow them carefully Sara :)

Answer 6

f^-1= 5(2)-1?

Answer 7

@Isaiah.Feynman like that I dont know what to do after that

Answer 8

Actually you are done.

Answer 9

f−1(2) = 3

f−1(2) = 11

f−1(2) = 18

f−1(2) = 24
these are the options and its like none of these

Answer 10

Its 5^2 not 5*2

Answer 11

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh (thats the sound of my epiphany)

Answer 12

so its the last one

Answer 13

Yep.