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

keenaH Group Title

y=1/3x^2-4x+6

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. wombat Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Solve for x?

    • 2 years ago
  2. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    im suposed to graph it

    • 2 years ago
  3. wombat Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok. Well automatically, you can tell that it is a parabola (quadratic) right? Quadratics are more easily graphed when you have the equation in quadratic form: y=a(x-h)^2 +k So you will want to convert the above equation to this form. They you can take the vertex and y intercept from the form

    • 2 years ago
  4. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i forgot the step after finding the vertex and the formula you use to do it

    • 2 years ago
  5. wombat Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    The vertex is the point (h,k)

    • 2 years ago
  6. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    im pretty sure the vertex is(6,-6)

    • 2 years ago
  7. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i used the formula ...x=-(b)/2(a)

    • 2 years ago
  8. wombat Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    That formula works too :) That will give you the x value that is the axis of symmetry. In the case you are doing, the vertex will be ( [-b/2a], f([-b/2a]))

    • 2 years ago
  9. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    its so confusing

    • 2 years ago
  10. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont know what you just wrote, its like a foriegn language

    • 2 years ago
  11. keenaH Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ...

    • 2 years ago
  12. wombat Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    OH! sorry! um what I wrote represents the coordinate pair of the vertex. -b/2a is the x value. f(-b/2a) is the y value that coresponds with the above x value

    • 2 years ago
  13. afranklin12 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i got 2.67

    • 2 years ago
  14. jhonyy9 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    - for you can solve it you need make it equal zero - so 1/3 x^2 -4x +6 =0 multiply both sides by 3 3x^2 ---- -12x +18 =0 3 x^2 -12x +18 =0 D =144 - 4*1*18 =144 -72 =72 x_1,2= (12+/- sqrt72)/2 =(12+/- sqrt(9*4*2))/2 =(12+/- 6sqrt2)/2 = =2(6+/-3sqrt2)/2 =6+/-3sqrt2 x_1,2=6+/-3sqrt2

    • 2 years 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.