A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

DarkBlueChocobo

  • one year ago

Help with polynomials

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

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

    I know a 5th degree polynomial is like ax^5 + ax^4 + ax^3 + ax^2 + ax + c

  3. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Right, and where does a polynomial have a root? When it crosses the 'x-axis' right?

  4. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Well "real root" anyways

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

    it is negative then positive then negative then positive

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

    has a root in between each change in sign any polynomial is continuous, can't skip numbers

  7. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    ^Indeed In order to have a real root, we just see how many times the values alternate from - to +

  8. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Or + to - of course

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

    So in the table it only flips two time s

  10. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Are you sure? Just 2?

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

    well with the numbers given to us at least for p(x)

  12. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    Well we start at -30 and go to 22....so thats 1 root and we go from 34 to -130 ....make that 2 roots And finally we go from that -130 to 222...so I count 3 roots

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

    wows I didnt think of that i was just seeing 2 switches. but didnt think of the change after

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

    So just to make sure I understand this, Say we have x=1,2,3,4,5,6 p(x)= -55, 100, 200, -225, 300, -325 So this would have; -55 to 100, 1 root 200 to -225, 2 roots -225 to 300, 3 roots 300 to -325, 4 roots ?

  15. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    I would say that is correct!

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

    Alright, sorry just reviewing some things for my Clep test. I take it on Friday D:

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

    Been reviewing like Algebra 2 concepts for the past like month and a half trying to get everything settled out

  18. johnweldon1993
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    No problem! And I understand...had to take a clep for english...felt like I was back in 5th grade lol

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

    lool Welp Im taking the College algebra one S: Kinda scared cause like some of these things I am not getting

  20. 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.