A community for students.
Here's the question you clicked on:
 0 viewing
Rachelxox
 3 years ago
What is the inverse of the function f(x)=1/3x2
a f1(x)=3x6
B f1(x)=3x+6
C f1(x)=3x+6
D f1(x)=3x6
Rachelxox
 3 years ago
What is the inverse of the function f(x)=1/3x2 a f1(x)=3x6 B f1(x)=3x+6 C f1(x)=3x+6 D f1(x)=3x6

This Question is Open

Yahoo!
 3 years ago
Best ResponseYou've already chosen the best response.0Put y = f(x) y = 1/3x2 Solve for x

BluFoot
 3 years ago
Best ResponseYou've already chosen the best response.0Isolate x on one side of the equation

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1Can u solve it for me please

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0Hey to find the inverse of functions you got to do 4 steps. 1. Substitute f(x) with y. 2. Reverse the x and y variables. 3. Solve for y. 4. Replace y with f^1x

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0Can you do the first step?

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0Everything's good but you accidentally wrote the last number wrong :) it's 2 :). Now can you do the 2nd step? ;)

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1So i add 2 to the other side

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0That's a bit later, but don't forget the 2nd step says to Reverse the x and y variables. Since our function is now y=1/3x2, we'd switch the x & y over, and it'd now be x=1/3y2 :) Do you get it so far? :)

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0and yeah on the 3rd step you'd then add 2 to both sides, & multiply by 3 to both sides as you're solving for y.

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1Yeah . do now lol I forgot about that part tthat's whats been screwing my up

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0If you forget, just use this problem to help you and eventually you'll be fine :) Did you get the answer? :)

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1No I'm confused again likeep how can u divided 1/3

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0oh okay :) well we got x+2=1/3y To eliminate the 1/3, if we multiply it by it's reciprocal (opposite) which is 3, the 1/3 & 3 will cancel out leaving the y by itself :) and then we'd multiply 3 to the other side as well :) did you get that? :)

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0you multiply instead to cancel out the fraction by it's opposite number :)

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1Ohh pellet . Feel stupid now ugh

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0its okay :) everyone makes mistakes so it's a good thing you know how to :) I myself just learned this 2 days ago :p I made mistakes at first but I got it afterward :)

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1Okeyyy thanks sooo much

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0no prob. :) hey by some chance do you take algebra 2 on flvs? o.O

Rachelxox
 3 years ago
Best ResponseYou've already chosen the best response.1No im tmaking it i. School some of it is eeasy but some of it is just plan out hard why

Loujoelou
 3 years ago
Best ResponseYou've already chosen the best response.0oh okay, no prob. :) I take Alg. 2 on flvs so was just wondering bc just learned this as well :) well best of luck but i g2g now so bye :)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.