1. Not finding help here? Sign up for a free 30min 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!

Nature of roots

  1. Dec 1, 2008 #1
    1. The problem statement, all variables and given/known data
    The equation of a curve is y=[tex]\frac{3x}{\sqrt{1+x}}[/tex].
    Given that the equation of the tangent to the curve at the point x=3 us 15x-16y=k , find the value of k.


    SOLVED


    2. Relevant equations



    3. The attempt at a solution
     
    Last edited: Dec 1, 2008
  2. jcsd
  3. Dec 1, 2008 #2

    Mark44

    Staff: Mentor

    Do you know the y-coordinate on the curve when x = 3?
    Do you know how to find the slope of a curve (i.e., the slope of the tangent line to the curve)?
    Do you know how to find the slope of the line 15x - 16y = k?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?