A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Find the standard form for the equation of a circle (x-h)^2 + (y-k)^2 = r^2 with a diameter that has endpoints (-1, 4) and (5, 0). i just need to find r

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

    if you find the length of a diameter and divide it by 2 .you will find it's radius .

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

    well i got (2,2) for h,k do i just plug in the equation to find r?

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

    well.you only want to find r so you should find the length of a diameter with using this formula: \[D=\sqrt{(y _{2}-y _{1})^2+(x _{2}-x _{1})^2}\]

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

    so i got sqrt 37

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

    are you sure? (0-4)^2+(5-(-1))^2=16+36=52 D=sqrt52=sqrt4*13=2*(sqrt13)

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

    opps i switched them

  7. 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.