Results 1 to 3 of 3

Math Help - finding domain and range

  1. #1
    Newbie
    Joined
    Aug 2008
    Posts
    13

    finding domain and range

    for the problem y = abs( x+2 ) - 3

    i understand the vertex is (-2, -3)

    is there also a domain and range?

    i don't there is....
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Newbie
    Joined
    Aug 2008
    Posts
    9
    Domain is (-\infty,\infty), range is [-3,\infty).
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor
    Joined
    Aug 2007
    From
    USA
    Posts
    3,110
    Thanks
    2
    Quote Originally Posted by zooanimal98 View Post
    is there also a domain and range?
    What an odd question. If it exists, there is a Domain and a range.

    i don't [think] there is....
    What an odd-er conclusion.

    Domain - What can you put in? Start with All Real Numbers and rule things out. In this case, nothing is ruled out.

    Range - What can you get out? Start with All Real Numbers and rule things out. In this case, that absolute value is NEVER negative. The very least you can get from that absolute value is zero (0). This makes the minimum value of the entire expression -3. We just ruled out everything less than -3.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Finding Domain and Range
    Posted in the Calculus Forum
    Replies: 2
    Last Post: December 2nd 2010, 08:06 PM
  2. Finding the Domain and Range for. . .
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: January 9th 2008, 05:22 PM
  3. finding the domain and range
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: November 25th 2007, 05:35 PM
  4. Finding Domain and Range
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: August 29th 2007, 10:31 PM
  5. Finding the Domain and Range...
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: January 29th 2007, 03:59 PM

Search Tags


/mathhelpforum @mathhelpforum