Results 1 to 2 of 2

Thread: implicit differentiation (I think)

  1. November 28th 2012, 07:30 AM #1
    kingsolomonsgrave
    kingsolomonsgrave is offline
    Member
    Joined
    May 2012
    From
    Toronto
    Posts
    192
    Thanks
    1

    implicit differentiation (I think)

    Find an equation of the line tangent to the curve with equation x^2 + xy + y^3 = 1, at the
    point (-1; 1)


    im I right in thinking this is an implicit differentiation problem? I would implicitly find the derivative of the equation and then use point slope formula to wite the equation of the line correct?

    how do I differentiate the above equation?
    Follow Math Help Forum on Facebook and Google+
  2. November 28th 2012, 07:39 AM #2
    Plato
    Plato is offline
    MHF Contributor
    Joined
    Aug 2006
    Posts
    17,189
    Thanks
    895
    Awards
    1
    MHF Donor

    Re: implicit differentiation (I think)

    Quote Originally Posted by kingsolomonsgrave View Post
    Find an equation of the line tangent to the curve with equation x^2 + xy + y^3 = 1, at the point (-1; 1)

    Yes indeed; 2x+y+xy'+3y^2y'=0. Solve for y'~.
    Follow Math Help Forum on Facebook and Google+
« complex equation with exponential | Damped Spring problem »

Similar Math Help Forum Discussions

  1. Implicit Differentiation
    Posted in the Calculus Forum
    Replies: 10
    Last Post: January 19th 2011, 11:59 AM
  2. Implicit differentiation/ partial differentiation
    Posted in the Calculus Forum
    Replies: 2
    Last Post: July 26th 2010, 05:24 PM
  3. Need help with implicit differentiation
    Posted in the Calculus Forum
    Replies: 1
    Last Post: September 29th 2009, 09:26 PM
  4. implicit differentiation
    Posted in the Calculus Forum
    Replies: 4
    Last Post: September 12th 2009, 03:15 PM
  5. Implicit Differentiation
    Posted in the Calculus Forum
    Replies: 8
    Last Post: December 31st 2007, 09:36 AM

Search Tags


/mathhelpforum @mathhelpforum