A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Find the vertices and foci of the hyperbola with equation quantity x minus five squared divided by eighty one minus the quantity of y minus one squared divided by one hundred and forty four = 1

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

    @saseal

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

    waddup?

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

    \[\frac{(x-5)^2}{81}-\frac{(y-1)^2}{4}=1\]?

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

    this is way easier than you think but you need to know two things first a) the center and b) which way it is oriented

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

    I know that the hyperbolas are oriented left/right

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

    i thought ya all that earlier

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

    taught*

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

    center?

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

    @satellite73 you mean what i taught him?

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

    (0,5) ?

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

    My bad, (5, 1)

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

    yes

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

    Ok so now what can I do?

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

    find c

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

    \[\frac{(x-5)^2}{81}-\frac{(y-1)^2}{4}=1\]\[\frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1\] what is \(a\)?

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

    Ok. c = 15

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

    a = 81, b =144

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

    no

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

    no

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

    \[a^2=81,b^2=144\]

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

    \[c^2=a^2+b^2\]

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

    thats why i told ya to put em into ^2 form

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

    Oh sorry. a = 9, b = 12

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

    Ok, so c = 15 because c^2 = 225

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

    @saseal

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

    yea?

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

    you know the hyperbola is transverse in x-axis so ( center +/- c, center) is your foci

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

    and same for the vertices

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

    Wait. These are my choices: A. Vertices: (17, 1), (-7, 1); Foci: (-7, 1), (17, 1) B. Vertices: (14, 1), (-4, 1); Foci: (-10, 1), (20, 1) C. Vertices: (1, 14), (1, -4); Foci: (1, -10), (1, 20) D. Vertices: (1, 17), (1, -7); Foci: (1, -7), (1, 17) So I know it has to be between A and B.

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

    Find an equation in standard form for the hyperbola with vertices at (0, ±3) and foci at (0, ±7). If my answer choices are: A. y squared over nine minus x squared over forty = 1 B. y squared over forty minus x squared over nine = 1 C. y squared over forty nine minus x squared over nine = 1 D. y squared over nine minus x squared over forty nine = 1 I was thinking it was between B and D.

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

    lemme check

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

    you see foci is c^2 = a^2+b^2 so we get 7^2 - 3^2 = 40

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

    Oh ok. So that would make it A.

  34. 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.