Results 1 to 4 of 4

Math Help - Finding Equation for parabola

  1. #1
    Newbie
    Joined
    Oct 2009
    Posts
    20

    Question Finding Equation for parabola

    "Find the equation of the parabola with vertex at the origin that passes through the point and opens to the right."


    At first I used the standard form of the equation of a parabola and I got
    (y-9)^2=4p(x-9)

    So is my next step trying to find the focus? And how?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    No one in Particular VonNemo19's Avatar
    Joined
    Apr 2009
    From
    Detroit, MI
    Posts
    1,823
    Quote Originally Posted by RenSully View Post
    "Find the equation of the parabola with vertex at the origin that passes through the point and opens to the right."


    At first I used the standard form of the equation of a parabola and I got
    (y-9)^2=4p(x-9)

    So is my next step trying to find the focus? And how?
    Hey again Ren!

    Notice that the vertex is at the origin. .

    This implies the equation

    (y-0)^2=4p(x-0)
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Oct 2009
    Posts
    20
    Hello again

    Oh I see. So, does that mean p=9?

    If I use p=9 I get y=36x...
    Follow Math Help Forum on Facebook and Google+

  4. #4
    No one in Particular VonNemo19's Avatar
    Joined
    Apr 2009
    From
    Detroit, MI
    Posts
    1,823
    Quote Originally Posted by RenSully View Post
    Hello again

    Oh I see. So, does that mean p=9?

    If I use p=9 I get y=36x...
    .

    Not quite. You were given the point (9,9). Use this to solve for p.

    (9)^2=4p(9)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Finding the equation of parabola
    Posted in the Calculus Forum
    Replies: 2
    Last Post: March 16th 2011, 11:20 AM
  2. Finding the equation of a parabola
    Posted in the Geometry Forum
    Replies: 1
    Last Post: January 16th 2011, 05:29 PM
  3. Finding the equation of a parabola
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: May 2nd 2010, 11:19 PM
  4. finding equation of a parabola
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: October 23rd 2009, 08:33 PM
  5. Help with finding the equation of a parabola
    Posted in the Algebra Forum
    Replies: 2
    Last Post: June 1st 2009, 05:33 PM

Search Tags


/mathhelpforum @mathhelpforum