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

kimdre10

Find the coordinates of the vertex for the parabola whose equation is f(x) = -4x2 + 8x - 4

  • one year ago
  • one year ago

  • This Question is Closed
  1. mark_o.
    Best Response
    You've already chosen the best response.
    Medals 1

    for your x coordinate use x=-b/2a

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

    then sub that to your y for the y coordinate

    • one year ago
  3. kimdre10
    Best Response
    You've already chosen the best response.
    Medals 0

    lol its multiple choice my bad haha (-2,36) (-1,-16) (2,-12) (1,0)

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

    .f(x) = y=-4x2 + 8x - 4 , a=-4, b=8, c=-4 x=-b/2a ==-8/2(-4)=__? then sub this to y

    • one year ago
  5. kimdre10
    Best Response
    You've already chosen the best response.
    Medals 0

    ?

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

    what did you get on youR x?

    • one year ago
  7. kimdre10
    Best Response
    You've already chosen the best response.
    Medals 0

    idk....just tell me the answer please. i gave you the multiple choices dude lol i really dont have time to sit here and figure it out .

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

    .f(x) = y=-4x2 + 8x - 4 , a=-4, b=8, c=-4 x=-b/2a x=-8/2(-4)=__? then sub this to y......... :D x=1 yes or no? sub this to f(1)=y=__ ? hmm i got into trouble of just giving answers many times ...LOL.... :D the x is there already just find y__? ...:D

    • one year 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.