Results 1 to 5 of 5

Math Help - Important - about parabolas

  1. #1
    Newbie
    Joined
    Sep 2005
    Posts
    16

    Important - about parabolas

    The question is, why should I join the points on a parabola? What is the purpose? This is a homework question.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Oct 2005
    From
    Earth
    Posts
    1,599
    I don't understand what you mean by "join the points"...
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Sep 2005
    Posts
    16
    join the points with a line, like connect them?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Newbie
    Joined
    Sep 2005
    Posts
    16
    like, I was given the x and y values for a parabola and I had to put them in a scatter plot. Now I have to jopin the points and I have to also write why I joined them but I don't know why I am supposed to.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Site Founder MathGuru's Avatar
    Joined
    Mar 2005
    From
    San Diego
    Posts
    478
    Awards
    1

    Lightbulb Maybe this is what you mean?

    maybe you plotted points and then you joined them to draw the complete parabola.

    the parabola is a continuous function and just because you have plotted points from an equation does not mean that is representative of this function. In order to represent the function well graphically you must connect the points on the graph.

    example,

    you plotted x=0, x=1, x=5

    But what happens when x=3, drawing the line gives you an idea of what happens between the points.
    Last edited by MathGuru; November 10th 2005 at 05:08 PM.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Very important
    Posted in the Pre-Calculus Forum
    Replies: 0
    Last Post: December 27th 2009, 07:24 AM
  2. Help please important
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: May 25th 2009, 10:21 PM
  3. important please help
    Posted in the Geometry Forum
    Replies: 1
    Last Post: May 10th 2009, 09:08 PM
  4. very important for me help
    Posted in the Calculus Forum
    Replies: 1
    Last Post: March 31st 2008, 06:35 AM

Search Tags


/mathhelpforum @mathhelpforum