Results 1 to 3 of 3

Math Help - Functions nd Graphs

  1. #1
    Member
    Joined
    Jan 2010
    Posts
    142

    Functions nd Graphs

    Hello! I have a crazy instructor and gave me this problems.

    A) Consider f(x)= mx+k,  g(x) = \frac{rx +s}{px+q}, and h(x) = ax^2+bx+c.

    1.) True or False?  f(x)||f^-1(x)

    2.) Show  g^-1(x) = \frac {-qx +s}{px -r} true or false? The points of intersection between g(x) and  g^-1(x) are on the line y=x.

    3.) Show  y= \frac {-b \pm \sqrt {4ax+b^2-4ac}} {2a} is the graph of the inverse relation for h(x).


    Honestly I don't have Idea how am I going to solve this problem. please help! Thank you!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,306
    Thanks
    1282
    Do you know what f^{-1}(x) and g^{-1}(x) mean? If not you had better look it up in your textbook.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Jan 2010
    Posts
    142
    Quote Originally Posted by HallsofIvy View Post
    Do you know what f^{-1}(x) and g^{-1}(x) mean? If not you had better look it up in your textbook.

    f^{-1}(x) and g^{-1}(x)

    those are the inverse function of f(x) and g(x)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Functions and graphs
    Posted in the Calculus Forum
    Replies: 3
    Last Post: January 16th 2009, 09:26 AM
  2. graphs of functions
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: October 25th 2008, 06:55 PM
  3. Functions and graphs
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: September 2nd 2008, 03:36 PM
  4. Functions and Their Graphs
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: July 16th 2008, 11:55 PM
  5. Functions and graphs...
    Posted in the Algebra Forum
    Replies: 1
    Last Post: February 26th 2006, 10:09 AM

Search Tags


/mathhelpforum @mathhelpforum