Results 1 to 2 of 2

Math Help - tangent line

  1. #1
    Junior Member
    Joined
    Feb 2008
    Posts
    32
    Awards
    1

    tangent line

    Find the equation of the tangent line at the given value of x on the curve.

    2xy - 2x + y = - 14 , x = 2
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Mathstud28's Avatar
    Joined
    Mar 2008
    From
    Pennsylvania
    Posts
    3,641
    Quote Originally Posted by ArmiAldi View Post
    Find the equation of the tangent line at the given value of x on the curve.

    2xy - 2x + y = - 14 , x = 2
    rearaning and facotring we get y(2x+1)-2x=-14\Rightarrow{y=\frac{2x-14}{2x+1}} so y'=\frac{2}{2x+1}-\frac{2(2x-14)}{(2x+1)^2} so now use the equation of the tangetn line y-f(x_0)=f'(x_0)(x-x_0) to obtain yoru answer
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: November 4th 2011, 06:42 PM
  2. Replies: 6
    Last Post: January 12th 2011, 02:38 PM
  3. Replies: 5
    Last Post: November 4th 2009, 06:49 PM
  4. tangent line & normal line question
    Posted in the Calculus Forum
    Replies: 4
    Last Post: March 15th 2009, 03:45 AM
  5. Replies: 4
    Last Post: March 17th 2008, 01:53 PM

Search Tags


/mathhelpforum @mathhelpforum