Results 1 to 2 of 2

Math Help - How do you show that it is not possible to find a value for a nonzero constant

  1. #1
    Newbie
    Joined
    Nov 2012
    From
    Massachusetts
    Posts
    1

    How do you show that it is not possible to find a value for a nonzero constant

    How do you show that it is not possible to find a value for a nonzero constant (a) so that f meets the requirement: at x=4, the value of the function is 1 and the slope of the graph of the function is 1.

    f(x) = ax2 where a is a nonzero constant
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,740
    Thanks
    480

    Re: How do you show that it is not possible to find a value for a nonzero constant

    f(4) = 16a = 1 \implies a = \frac{1}{16}

    f'(4) = 8a = 1 \implies a = \frac{1}{8}

    looks like a contradiction to me ...
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: February 14th 2011, 05:28 AM
  2. Show that this is a constant
    Posted in the Number Theory Forum
    Replies: 2
    Last Post: April 8th 2010, 12:12 PM
  3. Show that f is a non-constant polynomial iff...
    Posted in the Differential Geometry Forum
    Replies: 2
    Last Post: June 6th 2009, 05:59 AM
  4. Show a function f is constant, given...
    Posted in the Differential Geometry Forum
    Replies: 3
    Last Post: February 27th 2009, 08:00 PM
  5. Replies: 5
    Last Post: February 29th 2008, 02:05 PM

Search Tags


/mathhelpforum @mathhelpforum