Results 1 to 2 of 2

Math Help - Discontinuous limits

  1. #1
    Newbie
    Joined
    Oct 2009
    Posts
    5

    Discontinuous limits

    If f(x) = a-x^2 if x<-1, and x-b if x>-1
    How do I figure out the values of a and b ? I know there will be varying answers, but what are the steps to solving this ?
    Thanks !
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member Danneedshelp's Avatar
    Joined
    Apr 2009
    Posts
    303
    Quote Originally Posted by bebejay View Post
    If f(x) = a-x^2 if x<-1, and x-b if x>-1
    How do I figure out the values of a and b ? I know there will be varying answers, but what are the steps to solving this ?
    Thanks !
    Think of the values of a and b as ordered pairs (0,a) and (0,b). At these points your functions are crossing the y axis, so a and b just move the function up or down the y axis.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Where the function is discontinuous.?
    Posted in the Calculus Forum
    Replies: 2
    Last Post: September 2nd 2011, 07:08 AM
  2. Discontinuous Limits with Epsilons
    Posted in the Calculus Forum
    Replies: 7
    Last Post: October 11th 2010, 12:17 PM
  3. discontinuous derivatives
    Posted in the Differential Geometry Forum
    Replies: 8
    Last Post: June 8th 2010, 10:18 AM
  4. function discontinuous only on (0,1)?
    Posted in the Differential Geometry Forum
    Replies: 6
    Last Post: April 11th 2010, 05:42 PM
  5. example of discontinuous function
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: February 21st 2010, 09:01 PM

Search Tags


/mathhelpforum @mathhelpforum