A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = –2x^2 +6x – 1. A) x = 3; vertex: (3, 35) B) x = –1.5; vertex: (–1.5, – 14.5) C) x = –1.5; vertex: (–1.5, –5.5) D) x = 1.5; vertex: (1.5, 3.5)

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

    @Jhannybean Your up

  2. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    completing the square again ? just for variety, maybe look at the graph, does it look symmetric about any line ? |dw:1440293427749:dw|

  3. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    First you're going to want to complete the square in order to put your quadratic function in vertex form.

  4. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Mwuahaha @ganeshie8 is tired of this.

  5. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    lol not really, just saying it for effect haha!

  6. Jhannybean
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    :P But what is the scaling value of your axes? you didnt label anything there haha

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

    Just a lazier way to find the vertex, \[x=- \frac{ b }{ 2a }\] just throwing that out there.

  8. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    good point, it is confusing w/o labeling and stuff yeah

  9. 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.