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

haleym96 Group Title

Find the center and radius of a circle that has a diameter with endpoints (-9, -6) and (-1,0). Show work. a) center (4,3); radius 5 b) center (8,6); radius 10 c) center (-5,-3); radius 5 d) center (-10,-6); radius 10

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Center would be the midpoint between those two points, and the radius would be the distance between them divided by 2

    • 2 years ago
  2. haleym96 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    So I do the midpoint formula using the two points to find the center?

    • 2 years ago
  3. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Graph paper would work great for this problem

    • 2 years ago
  4. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Yep, use the midpoint formula

    • 2 years ago
  5. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    What do you get?

    • 2 years ago
  6. haleym96 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    (-5,-3)

    • 2 years ago
  7. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Yep, what about for the radius?

    • 2 years ago
  8. haleym96 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    I know its suppose to be 5, but I didn't get it.

    • 2 years ago
  9. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Do you know the distance formula?

    • 2 years ago
  10. haleym96 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Wait, I think I know why..

    • 2 years ago
  11. haleym96 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    I still didn't get it. Isn't it d=\[\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}\]

    • 2 years ago
  12. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    Yeah thats it. Plug in your coordinates \[D=\sqrt{(-1+9)^2+(0+6)^2}\]

    • 2 years ago
  13. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    youll get d=sqrt{100} d=10 but remember thats the diameter, radius is diameter divided by 2. 10/2=5

    • 2 years ago
  14. haleym96 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh, I got it now. I just added wrong. Thanks!

    • 2 years ago
  15. CalebBeavers Group Title
    Best Response
    You've already chosen the best response.
    Medals 3

    You're welcome

    • 2 years 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.