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!

Tangent Line

  1. Dec 16, 2008 #1
    1. The problem statement, all variables and given/known data
    Find an equation for the line tangent to to the graph of f^-1 at the pt (3,1) if f(x)=x^3+2x^2-x+1

    2. Relevant equations

    3. The attempt at a solution
    I used the Inverse Function Thm
    Now do I plug in 3 to this to find slope?
  2. jcsd
  3. Dec 17, 2008 #2
    state the inverse function thm.
    what is (3,1) a point of?

    also, i think you are mixing up x's. if you look at f^-1 as a function of x, these x's are really values (or y's) of f(x)

    i hope you understand this; i'm afraid i've been a bit convoluted.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Tangent Line
  1. Tangent Line (Replies: 4)

  2. Tangent Line (Replies: 6)

  3. Tangent lines (Replies: 1)

  4. Tangent of a line (Replies: 14)

  5. Tangent line (Replies: 4)