A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

[[HARD - Polynomials]] Consider the curve y = x^5 - 10x^4 + 22x^3 + 32x^2 - 20x + 20. Find the equation of the line which intersects the curve at (-2, -180) and is a tangent to the curve at two other points.

  • This Question is Closed
  1. toxicsugar22
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Modulas can u help me after her

  2. toxicsugar22
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    please

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

    Take derivative, find zeros, then find the points of those zeros in the original equation. When you have the points (there shouldn't be too many) find which 2 make a line that intersects the given point.

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

    or actually nm, those zeros wont work because the slope of the line you need isn't going to be 0

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

    mm. I differentiated y, but I don't know what to do with the differential. I let the line be y = mx + b and set x^5 - 10x^4 + 22x^3 + 32x^2 - 20x + 20 = mx + b Kindda stuck after that

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

    You need a slope around x = 5 and .5 that is the same. But how to get that I'm not sure.

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

    and if that is the derivative, the derivative should = m since it will serve as the slope

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

    I gtg though, gl with it

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

    alright, thanks.

  10. 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.