A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Goose.

  • one year ago

Seriously confused! Will medal!

  • This Question is Closed
  1. Goose.
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Given f(x) = the quantity of 4x plus 1, divided by 3, solve for f−1(3). 2 4 6 8

  2. Goose.
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I know that something to the ^-1 power is basically the recipricol.. like 5^-1 would be 1/5 but how would I do the fraction in this problem?

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    f^-1(x) is not the same as 1/f(x) The easiest method to solve this is to write y instead of f(x). Then you solve the equation for x in terms of y. f(x) = (4x+1)/3 y=(4x+1)/3 3y=4x+1 . . . x=(3y-1)/4 f^-1(x)=(3x-1)/4 f^-1(3)=2

  4. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Equivalently, you can plug in y = 3 and solve for x to get the same answer y=(4x+1)/3 3=(4x+1)/3 ... ... ... x = 2

  5. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The notation \(\Large f^{-1}(x)\) means "f inverse" or "the inverse of f(x)" like jualbafer wrote, it is NOT the same as \(\LARGE \frac{1}{f(x)}\) yes it's confusing because the negative one exponent has 2 different meanings

  6. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.