Results 1 to 3 of 3

Math Help - Axis of symmetry

  1. #1
    Junior Member
    Joined
    May 2006
    Posts
    30

    Axis of symmetry

    Question:

    If f(x) = 3x^2 - 15x + 3 and g(x) = x-2, the equation for the axis pf symmetry of the graph of y = f(g(x)) is?


    Not sure what to do or what this means. Please Help.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    GAMMA Mathematics
    colby2152's Avatar
    Joined
    Nov 2007
    From
    Alexandria, VA
    Posts
    1,172
    Awards
    1
    Quote Originally Posted by mathlg View Post
    Question:

    If f(x) = 3x^2 - 15x + 3 and g(x) = x-2, the equation for the axis pf symmetry of the graph of y = f(g(x)) is?


    Not sure what to do or what this means. Please Help.
    Plug & Chug...

    f[g(x)] = 3(x-2)^2 - 15(x-2) + 3
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Senior Member
    Joined
    Dec 2007
    From
    Melbourne
    Posts
    428
    The axis of symmetry for a parabola is a straight line passing through the turning point and parallel to the y axis.

    replacing x with (x-2) is equivalent to a translation of 2 to the right.

    hope this helps.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: July 18th 2011, 08:25 AM
  2. Finding Axis of symmetry
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 21st 2010, 04:45 PM
  3. x axis symmetry
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: August 19th 2009, 09:07 PM
  4. how to create x-axis symmetry
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: September 30th 2008, 04:49 PM
  5. axis line of symmetry
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: August 27th 2008, 09:19 AM

Search Tags


/mathhelpforum @mathhelpforum