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

AIK

Can someone give me a step by step Graphing Quadratic Equations Form.

  • one year ago
  • one year ago

  • This Question is Closed
  1. timo86m
    Best Response
    You've already chosen the best response.
    Medals 1

    just get a grid. make a x,y T table |dw:1360036178869:dw| And start plotting. THe more points the better and just draw a smooth fitting curve. And there is always google. Just paste an expression without the y= for example x^2

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

    Well first, you got to move everything to one side so that it equals zero or you have to make y equal to zero. After that, you have to factorise and find the x-intercepts. If you can't factorise it, then you have to use the quadratic formula to find the x-intercepts. Then once you've done that, you have to find the y-intercept. That would mean you have to make x equal to zero.

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

    Afterwards, you can determine whether it is concave up or concave down. If it's concave up the coefficient of x^2 is positive. If the coefficient of x^2 is negative, then you know the curve is concave down. Then once you've done that, just run down a parabolic curve shape making sure you pass through those critical points.

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

    I find the 1-3-5.. method easier ( http://mathpodcasts.blogspot.com/2008/12/parabolas-episode-6-using-135-pattern.html ) than finding the coordinates for all the x coordinates, but that's just me.

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

    If you can't do that, then just do what @timo86m told you. That's probably the best way to sketch a curve if you're unsure of anything.

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

    Note: if you do check the link and know what the a, b, and c are in the quadratic equation, you can skip to 4:11

    • 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.