Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Shykyirim Group Title

xy=2 Is this? a)symmetry at x-axis,y-axis, and/or at the origin

  • 10 months ago
  • 10 months ago

  • This Question is Open
  1. pgpilot326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    rewrite as y = 2/x... recognize this?

    • 10 months ago
  2. Shykyirim Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

    • 10 months ago
  3. pgpilot326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    also if f(-x) = f(x) then it is symmetric about y. if f(-x) = -f(x) it is symmetric about the origin. if f(x) = y or -y then it is symmetric about x.

    • 10 months ago
  4. pgpilot326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    not or, and.

    • 10 months ago
  5. pgpilot326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    that is, x: -> y and x -> -y then it is not a function but is symmetric about the x-axis.

    • 10 months ago
  6. Shykyirim Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    trying to keep up but im sure y=2/x is a function and i wanted to know if any of the combinations of symmetry x-axis,y-axis,origin(or just at least one of these) are possible

    • 10 months ago
  7. pgpilot326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    learn to do this: \[f(x) = \frac{ 2 }{ x }\Rightarrow f(-x) = \frac{ 2 }{ -x }=-\frac{ 2 }{ x }\Rightarrow f(-x) = -f(x)\] so it's symmetric about the origin. since it's a function. it can't be symmetric about the x-axis.

    • 10 months ago
    • Attachments:

See more questions >>>

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.