A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

MEDAL AND FAN!!!!!!! HELP What is the equation of the quadratic graph with a focus of (2, 0) and a directrix of y = −12

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

    there are several ways to do this 1. use the distance formula for 2 points on the number plane, equal 2 distances and then find the equation. 2. find the focal length, the the vertex and subsequently the equation. which method do you know about..?

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

    i think # 2 but it is hard

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

    i think the answer is f(x)=-x^2+4x+35

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

    ok... so start by graphing the information you have..

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

    is it correct

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

    |dw:1437258617379:dw|

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

    by plotting the information you can see the parabola is concave up...

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

    |dw:1437258801013:dw|

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

    so then y=x^2-4x-35

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

    I truely don't think that is the answer...

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

    so to start, can you tell me the distance from the focus to the directrix along the line of symmetry

  12. 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.