A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

determain wheather y varies directly with x. -4y=8x+16

  • This Question is Closed
  1. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes: y = x plus alot of noise

  2. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y = 1/x is an inverse relationship; y = x is a direct relationship

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

    yes y=1 is not an option so thats wronq

  4. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    its hard to tell; why would you put y=1 as an answer?

  5. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y varies directly with x is TRUE in this context.

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

    is it 2 -4 or 8?

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

    what if you decide to make either x or y the subject?

  8. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ....is what 2 -4 or 8?

  9. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you have the equation of a line; it has an infinite number of solutions...

  10. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the slope of that line is -2.... 8/-4 = -2 so the change in y with respect to x is -2.

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

    amistres but you have not prooved that the two vary directly

  12. 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.