Results 1 to 3 of 3

Math Help - Finding properties of a graph. ex. intercepts...

  1. #1
    Newbie
    Joined
    Apr 2009
    Posts
    3

    Finding properties of a graph. ex. intercepts...

    in the function f(x) x+1/1-x find the intercepts, intervals of increasing/decreasing, any extrema, intervals of concave up/down, inflection points and asymptotes. You must show your work using calculus to support your answer.


    please write what steps you took to find each
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Newbie
    Joined
    Nov 2008
    Posts
    22
    f(x)=\frac{x+1}{1-x}

    This is just work, I can give you the hint that the function doesn't exist at x=1 so you can be sure that x=<-\infty,1>is decresing and x=<1,\infty> is increasing

    Also you find intercepts for y when x=0 and y when x=0
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by bookworm25 View Post
    in the function f(x) x+1/1-x find the intercepts, intervals of increasing/decreasing, any extrema, intervals of concave up/down, inflection points and asymptotes. You must show your work using calculus to support your answer.


    please write what steps you took to find each
    Do you know hot to get the derivative of f(x) using the quotient rule? Do you know how to use the derivative to find the intervals over whch the function is increasing or decreasing?

    Do you know how to find the double derivative of f(x)? Do you know the relationship between the double derivative and concavity?

    Where are you stuck in the question you posted?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. using intercepts to graph a plane
    Posted in the Calculus Forum
    Replies: 1
    Last Post: September 29th 2009, 04:20 PM
  2. X-intercepts of a graph
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: April 9th 2009, 06:53 PM
  3. intercepts of a graph
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: November 11th 2008, 07:41 PM
  4. intercepts of graph
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: April 20th 2008, 09:11 AM
  5. Tanx+sinx, find f', f", intercepts than graph
    Posted in the Calculus Forum
    Replies: 0
    Last Post: November 23rd 2007, 09:56 AM

Search Tags


/mathhelpforum @mathhelpforum