Results 1 to 4 of 4

Math Help - tangency

  1. #1
    Newbie
    Joined
    Mar 2008
    Posts
    2

    tangency

    All sorted, thank you very much.
    Last edited by Makeros; April 2nd 2008 at 03:32 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member wingless's Avatar
    Joined
    Dec 2007
    From
    Istanbul
    Posts
    585
    Have you learned how to differentiate?

    f'(x) gives the slope of the tangent to f(x) at any x point.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Mar 2008
    Posts
    2
    Thank you. :3
    Last edited by Makeros; April 2nd 2008 at 03:32 AM.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Super Member wingless's Avatar
    Joined
    Dec 2007
    From
    Istanbul
    Posts
    585
    It's correct.

    Now, f'(1) will give you the slope at x=1. Then you can use the general line formula,

    y=m\cdot x + C

    We know that m = slope = f'(1). And the line must pass the point (1,f(1)). Using these, find C. There, you have the equation
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Tangency
    Posted in the Calculus Forum
    Replies: 2
    Last Post: November 10th 2009, 09:29 AM
  2. Tangency to a curve
    Posted in the Calculus Forum
    Replies: 2
    Last Post: November 3rd 2009, 08:47 AM
  3. Calculus Tangency
    Posted in the Calculus Forum
    Replies: 1
    Last Post: January 29th 2009, 02:12 AM
  4. Tangency Question
    Posted in the Calculus Forum
    Replies: 2
    Last Post: April 9th 2008, 06:54 AM
  5. Points of tangency.
    Posted in the Calculus Forum
    Replies: 2
    Last Post: March 2nd 2008, 10:33 PM

Search Tags


/mathhelpforum @mathhelpforum