Results 1 to 3 of 3

Math Help - Graphing inequalities

  1. #1
    Newbie
    Joined
    Dec 2009
    Posts
    1

    Graphing inequalities

    I have to graph the inequality y<4x but don't know how to get it into y=mx+b with 2 variables. Help?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,234
    Thanks
    27
    your inequality y<4x is already in the form of y = mx+b, the only difference is ,you have no equals sign. Treat the less than sign as an equals and graph the equation. Make the line dotted this implies it is either less than or greater than, then shade the required region and you are done.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member Bacterius's Avatar
    Joined
    Nov 2009
    From
    Wellington
    Posts
    927
    You don't always need two variables. In your case, b = 0.

    If this helps, you can write your inequality like this :

    y < mx + b
    y < 4x + 0
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Inequalities by graphing
    Posted in the Algebra Forum
    Replies: 2
    Last Post: May 23rd 2010, 06:38 AM
  2. graphing inequalities
    Posted in the Algebra Forum
    Replies: 1
    Last Post: March 15th 2008, 08:15 AM
  3. [SOLVED] graphing inequalities
    Posted in the Algebra Forum
    Replies: 2
    Last Post: March 12th 2008, 05:18 PM
  4. Graphing Inequalities
    Posted in the Pre-Calculus Forum
    Replies: 6
    Last Post: May 9th 2007, 06:27 PM
  5. Graphing inequalities
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: January 24th 2007, 09:57 PM

Search Tags


/mathhelpforum @mathhelpforum