Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

rannsan

  • 2 years ago

What is the domain of this rational function f(x)= (3x-8 )/(4x+20)

  • This Question is Closed
  1. Directrix
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The domain is the set of admissible values of x. In a rational function, the first thing to do is to see if there is a value of x that makes the entire denominator have a value of zero. If there is one that does that, it must be excluded from the domain because division by zero is undefined? Do you see such a value of x?

  2. rannsan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I got it thank you (-y)/((4x^4)) is my answer.

  3. Directrix
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @rannsan --> Whatever you wrote above is not the answer to the question. The question you posted has to do with domain. --> What is the domain of this rational function?

  4. rannsan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    now I am confused

  5. Directrix
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (-y)/((4x^4)) is the answer to a simplify question I just saw that you posted in another thread. Forget about that and look at the question you posted in this thread.

  6. Directrix
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think you have this question here: http://openstudy.com/study#/updates/50652851e4b08d185211dad2 mixed up with the question about the domain.

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

    • Attachments:

Ask your own question

Ask a Question
Find 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
  • 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.