A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

y = 3 - l t-3 l y' = 9 - t^2 The solutions says that only 3 is a critical number. Why not -3 also?

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

    of which equation? -3 should also be a critical number of the second equation, but I don't understand how the first equation relates to the problem

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

    well ultimately i have to find the extrema of the y = 3 - l t-3 l ....so i guess i figured that absolute values had something to do with it but i wasn't exactly sure

  3. bahrom7893
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait a second.. how did u differentiate it?

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

    i did what you told me...square the inside and take the square root

  5. bahrom7893
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but i dont think this will work..

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

    thats how i got y'

  7. bahrom7893
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    uhmm in that case it would work but im not sure about here...

  8. bahrom7893
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait it does work..

  9. bahrom7893
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i honestly have no idea why, ask ur teacher lol

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

    wait, what was the original question?

  11. 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.