Results 1 to 2 of 2

Thread: Equation of a parabola

  1. Feb 22nd 2010, 10:24 PM #1
    lance
    lance is offline
    Newbie
    Joined
    Feb 2010
    Posts
    22

    Equation of a parabola

    Vertex: (0,0); contains (-3,-4) and (-3,4)...
    Find the equation.. Please help me or just give me an idea on how to do this problem... Thanks!
    Follow Math Help Forum on Facebook and Google+
  2. Feb 22nd 2010, 10:39 PM #2
    Prove It
    Prove It is offline
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    12,673
    Thanks
    1865
    Quote Originally Posted by lance View Post
    Vertex: (0,0); contains (-3,-4) and (-3,4)...
    Find the equation.. Please help me or just give me an idea on how to do this problem... Thanks!
    A parabola can be written as

    y = a(x - h)^2 + k, where h is the x coordinate of the vertex and k is the y coordinate of the vertex.


    So so far we know y = a(x - 0)^2 + 0

    y = ax^2.


    Now substitute one of the other points and solve for a.
    Follow Math Help Forum on Facebook and Google+
« Graphing question | please help binomial theorem expand »

Similar Math Help Forum Discussions

  1. Equation of a Parabola
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: May 12th 2009, 06:18 PM
  2. equation of parabola
    Posted in the Algebra Forum
    Replies: 1
    Last Post: Apr 28th 2009, 08:38 PM
  3. Equation of a parabola?????
    Posted in the Algebra Forum
    Replies: 1
    Last Post: Mar 28th 2009, 02:14 PM
  4. Parabola Equation
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: Jan 18th 2008, 05:46 PM
  5. Equation of parabola
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: Jul 28th 2005, 02:39 AM

Search Tags


/mathhelpforum @mathhelpforum