Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Turner

  • one year ago

An equation of a circle is x^2 + y^2 + 10x – 6y + 18 = 0. Part 1: Show all your work in determining the center and radius of this circle. Part 2: In complete sentences, explain the procedure used.

  • This Question is Closed
  1. some_someone
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    use completing the square.

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

    Put your x guys together and put your y's guys together. You need to be able to complete the square. Recall (m+n)^2=m^2+2mn+n^2 So if we have a^2+ja+k and we want to find what k is that completes the square: We divide j/2 then square that result. This will be k. k=(j/2)^2 So if we have a^2+ja+(j/2)^2 we can rewrite this as (a+j/2)^2 Or if we have m^2+2mn+? ?=(2n/2)^2=(n)^2=n^2 So m^2+2mn+n^2=(m+n)^2 like we said above.

  3. timo86m
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    get the constants in one side. then complete the square for x then for y

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.