Question

Pleasee Helpp? D:
Given the function f(x) = log2(x + 6), find the value of f^−1(3).

Answer 1

take y=log2(x+6)

Answer 2

have you tried this ?

Answer 3

I got f^−1(3) = 9 when I tried, but idk if it's correct

Answer 4

and how ?
no its not correct.

Answer 5

\(3 = \log_2(x+6) \implies x+6 = 3^2\)
can you get x from there ?

Answer 6

I separated the equation and got f(x) =2log(X)+2log(6), but then didn't know what to do so I guessed by looking at the numbers.
And yes I can get x now. I see what you did. Thank you!

Answer 7

I got 3 @ hartnn

Answer 8

3 is correct :)

Answer 9

oh wait!

Answer 10

\(3 = \log_2(x+6) \implies x+6 = 2^3\)
sorry for that mistake

Answer 11

x+6 =8
x=2

Answer 12

@Jessicaa

Answer 13

ohh okay. Thank you for the help!

Answer 14

welcome ^_^

Answer 15

since you seem to be new here,
\(\Huge \mathcal{\text{Welcome To OpenStudy}\ddot\smile} \)

Answer 16

lol thank you. I am. I'm still learning

Answer 17

have fun!