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

ksaimouli

(a)increasing (b) decreasing (c)local extreme values

  • one year ago
  • one year ago

  • This Question is Closed
  1. ksaimouli
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1353980630180:dw|

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

    i took derivative =0 i got \[+-\sqrt{2}\]

    • one year ago
  3. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Take the derivative, find the critical points, draw a number line, find y values of your critical points, determine local extrema and increasing/decreasing intervals.

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

    should i need to include the domain restriciton in numberline @Brittni0605

    • one year ago
  5. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    If a restriction was given than yes.

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

    +-2

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

    no restriction is given

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

    when i take derivative i set denominator=0 i got +-2

    • one year ago
  9. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Ok, so your domain is negative infinity to infinity

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

    yup

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

    |dw:1353980936825:dw|

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

    this is the derivative of teh funciton

    • one year ago
  13. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Ok.

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

    so the critical points are|dw:1353981108528:dw|

    • one year ago
  15. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes.

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

    should need to set the denominator to find domain of the function |dw:1353981161255:dw|

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

    |dw:1353981180565:dw|

    • one year ago
  18. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes, good number line

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

    or|dw:1353981212350:dw|

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

    that one or this one so confused

    • one year ago
  21. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    The first pic.

    • one year ago
  22. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    You're critical values are the x values where the derivative =0 or where the derivative doesnt exist.

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

    then if i choose -3 to check whether it is + or - their is domain error

    • one year ago
  24. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    By setting the numerator equal to 0, you found where the derivative equals . By setting the denominator equal to 0, you found where the derivative doesnt exist

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

    yup i know that one i set the number line can u plz figure out the +and- values

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

    |dw:1353981465522:dw|

    • one year ago
  27. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1353981469116:dw|

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

    so increasing=|dw:1353981723064:dw|

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

    dec|dw:1353981745781:dw|

    • one year ago
  30. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes.

    • one year ago
  31. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    They didnt give you a domain, but bc of the type of prob, a domain was determined. You found out the function only exists between (-2,2)

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

    max root2 and min -root2

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

    so function exists (-2,2) but min and max at end enpoints undefinied am i right but it is good to check the domain

    • one year ago
  34. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Um, you have to find the y values of your critical points

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

    i know that i simple

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

    esay

    • one year ago
  37. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Lol, ok.

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

    i hate typo

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

    thx

    • one year ago
  40. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Np. Hope I helped.

    • one year 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.