A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Which point is the vertex of the parabola? a: (-2, -3) b: (2, 3) c: (-2, 3) d: (2, -3)

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

    It all depends on the parabola....

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

    thats all they gave me

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

    well they gave me this too

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

    what this?

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

    y = x2 + 4x + 1

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

    oh, that is much better!

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

    y=x²+4x+1 you have to complete the square in this case.

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

    Let me ask you this, if you had \(\large\color{black}{ \displaystyle y=x^2+4x+\text{___} }\) then what number would you want in place of a blank to make this trinomial/expression a perfect square?

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

    1

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

    no, you wouldn't want a "1"..... you need this expression to factor into two equal parts.

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

    well (x+2)(x+2) would give you the first term x² and second term 4x and a third term 4, is this right or not?

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

    right

  13. 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.