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stevench
 3 years ago
if f(g(x))=x and f(x)= 3x4, find g(x)
stevench
 3 years ago
if f(g(x))=x and f(x)= 3x4, find g(x)

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hba
 3 years ago
Best ResponseYou've already chosen the best response.1to find the inverse function, let y=g(x) f(y)=x 3y4= x rearrange to find y and voila ! you get g(x)

hba
 3 years ago
Best ResponseYou've already chosen the best response.1Notice that \[f(g(x))=x=f(f^{1}(x))\] thus \[g(x) = f^{1}(x)\]

stevench
 3 years ago
Best ResponseYou've already chosen the best response.0i got it, but dont know how to re arrange it to where it fits in the options im given

hba
 3 years ago
Best ResponseYou've already chosen the best response.1What did you get ? and What are your options ?

stevench
 3 years ago
Best ResponseYou've already chosen the best response.0a) x4/3 b) x+4/3 c) (x/3) +4 d) (x/3) 4

hba
 3 years ago
Best ResponseYou've already chosen the best response.1What answer did you get ? @stevench

stevench
 3 years ago
Best ResponseYou've already chosen the best response.0I'm trying to do a billion things at once becaus I'm way overdue in an online class and just need help gettin answers

hba
 3 years ago
Best ResponseYou've already chosen the best response.1You dont know how to solve 3y4=x

hba
 3 years ago
Best ResponseYou've already chosen the best response.1@ikhwanz Please read the CoC http://openstudy.com/codeofconduct

ikhwanz
 3 years ago
Best ResponseYou've already chosen the best response.1easily you arrange it \[(f^1(f(g(x))\] put the value of f(g(x)) inside f^1 f1=(x+4)/3_________ which from f(x)=3x4 so change y=3x4 then get the x value y+4/3 change f(y) to f1=(x+4)/3 subtitute value fg(x) inside f1

hba
 3 years ago
Best ResponseYou've already chosen the best response.1@stevench You should also look at the CoC.

stevench
 3 years ago
Best ResponseYou've already chosen the best response.0Thank you @ikhwanz for helping me find the answer

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1As a rule of thumb, we would prefer the askers to participate in the solution process instead of having the answerers doing all the work. if f(g(x))=x and f(x)= 3x4, find g(x) f(x)= 3x4; replace x with a g(x) to get f(g(x))= 3[g(x)]  4 ; and since f(g(x))=x x = 3[g(x)]  4 , use basic algebra techniques to find g(x)

stevench
 3 years ago
Best ResponseYou've already chosen the best response.0well at the moment in everything that i am trying to do I can't just simply wait all day

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1thats not really our concern; we are aimed at being a study site, not a free answering service. We would rather promote learning the material as opposed to just handing over answers. This social contract is aimed at curbing people from using the site to cheat with ...
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