1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Quartic function Problem EMS

  1. May 10, 2007 #1
    Quartic function Problem!!! EMS!!!!

    I got stuck on a question that tells me to find the restriction on coefficient on equation y=Ax^4+Bx^3+Cx^2+Dx+E, so that the function can form a "w" shape, and I found that a>0 and e can be any thing, but others I cannot find. SO if anyone PLZ help me
  2. jcsd
  3. May 11, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor

    In order to have a "w" shape, the function must have two distinct minima and a maximum- that is, the derivative can be written as a product of three linear terms: a(x- u)(x- v)(x- w) with u, v, w distinct numbers.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Quartic function Problem EMS
  1. Functions problem (Replies: 2)

  2. Function Problem (Replies: 2)

  3. Functions problem (Replies: 4)