Mathematics
22 Online
OpenStudy (sarahc):
Let f(x) = 5x + 12. Find f–1(x).
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
I was also confused on these.
OpenStudy (anonymous):
Switch y and x, y being f(x)
OpenStudy (anonymous):
is this question about finding the inverse of a function?
OpenStudy (anonymous):
Yes.
OpenStudy (anonymous):
f-1(x)
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
f^-1
OpenStudy (anonymous):
\[y = 5x +12\]
OpenStudy (anonymous):
Yes.
OpenStudy (anonymous):
x=5y+12
OpenStudy (anonymous):
\[x = 5y +12\]
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Solve for x.
OpenStudy (anonymous):
lol
OpenStudy (anonymous):
x-12=5y
OpenStudy (anonymous):
(x-12)/5=y
OpenStudy (anonymous):
\[5y = x -12\]
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
\[y = \frac{ x-12 }{ 5 }\rightarrow f ^{-1}(x)=\frac{ x }{ 5 }-\frac{ 12 }{5 }\]
OpenStudy (anonymous):
Too late, I got it.
OpenStudy (anonymous):
I GTG.
OpenStudy (anonymous):
Good luck math.
OpenStudy (anonymous):
\[y = \frac{ 1 }{ 5 }(x-12)\]
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (sarahc):
so it would x-12/5?
OpenStudy (anonymous):
yup
OpenStudy (sarahc):
thanks!
OpenStudy (anonymous):
you are welcome but follow the steps
OpenStudy (anonymous):
so you can do it yourself
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
if you practice the steps i showed you, you'll almost be able to solve any problem of the kind
OpenStudy (sarahc):
okay I did. I got 100 :)
OpenStudy (anonymous):
Good for you.
OpenStudy (anonymous):
did u get 100%
OpenStudy (anonymous):
good i am happy
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Thanks.
OpenStudy (anonymous):
sorry i was busy in the computer science section
OpenStudy (anonymous):
lol
OpenStudy (anonymous):
Anyway, can you help me?
OpenStudy (anonymous):
I posted my questions.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
sure what is ur qs? if i know how to solve it?
OpenStudy (anonymous):
Bumping now.
OpenStudy (anonymous):
so where is the question
OpenStudy (anonymous):
It should be the third one down.