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

tribsantos

Can somedbody help me with problem 3F-8, (b)? I can't understand the answer given...

  • one year ago
  • one year ago

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

    There are several somebodies out here who would be glad to help if you included a link to the problem itself.

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

    Sure, sorry about that: the problem is in this pdf file

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

    |dw:1359705070117:dw| Basically we end up with OB=y and AQ=x

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

    The point O is (0, 2y) and the point Q is (2x, 0), giving the slope of the line to be -y/x.

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

    Thank you very much for your answer. I still don't know if I got it, though. What I understood from the problem is that I should find a curve such that for whatever point P in the curve that I chose, if I took the tangent at that point, P would be at exactly the midpoint of the segment of that line that lies in the first quadrant. But looking at your curve, and the one from the solution given, it seems to me that if I move up (down), the upper part of the line would be shorter (longer) than the lower part. Did I get the question wrong? Thank you!

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

    |dw:1359951384469:dw| You seem to understand the problem correctly. The upper portion of my curve is definitely off, but I did manage to show a tangent for the lower section that should illustrate the concept.

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

    |dw:1359952181692:dw| This graph might illustrate it better.

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

    Thank you very much

    • 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.