Results 1 to 3 of 3

Math Help - Test question: Function

  1. #1
    Newbie
    Joined
    Apr 2009
    Posts
    2

    Test question: Function

    Could someone explain to me this:

    if the function g is defined for all nonzero numbers y by
    g(y)=\frac{y}{|y|}
    what is the value of g(2)-g(-200) ?


    Thank you!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by winkie View Post
    Could someone explain to me this:

    if the function g is defined for all nonzero numbers y by
    g(y)=\frac{y}{|y|}
    what is the value of g(2)-g(-200) ?


    Thank you!
    g(2) = \frac{2}{|2|} = \frac{2}{2} = 1.

    g(-200) = \frac{-200}{|-200|} = \frac{-200}{200} = -1.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Apr 2009
    Posts
    2

    Wink Thanks!!!

    Thank you! I'm ashamed, it was very simple!!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Test Convexity of a function
    Posted in the Math Software Forum
    Replies: 0
    Last Post: March 11th 2011, 07:28 PM
  2. Replies: 8
    Last Post: January 9th 2010, 04:06 AM
  3. Test the differentiability of the function
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 28th 2009, 12:50 PM
  4. Replies: 0
    Last Post: January 15th 2009, 12:58 AM
  5. Test Function for Symmetry
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: January 23rd 2007, 08:00 AM

Search Tags


/mathhelpforum @mathhelpforum