Results 1 to 5 of 5

Math Help - Regression equation off derivative function.

  1. #1
    Member
    Joined
    Sep 2009
    Posts
    162

    Regression equation off derivative function.

    I got this investigation to do for homework today. The question is below:

    The regression equation represents the derivative function. Compare the original equation and the derivative equation. What relationship do you notice?

    Comparing f(x) to f’(x), f’(x) represents the instantaneous rate of change of f(x). The pattern to determine the instantaneous rate of change without graphing technology is to multiply the coefficients of each term by the power of the term, then reduce the exponent by 1.


    Is that a good enough answer? Or is there a proper mathematical terminology for this pattern?

    Also, what is the derivative of a constant function. For example, y = 3. I believe it is 0 however my math is saying it is undefined.
    Last edited by Barthayn; April 18th 2011 at 12:50 PM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    29
    It sounds like you are on the right track, but is that all the information you were given?

    Do you know the purpose of a regression equation? Do you know how one is found?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Sep 2009
    Posts
    162
    Quote Originally Posted by pickslides View Post
    It sounds like you are on the right track, but is that all the information you were given?

    Do you know the purpose of a regression equation? Do you know how one is found?
    No, what is the purpose?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    29
    A regression equation 'fits' a dataset to help predict unknown values.

    It is true that the derivative of a constant is 0.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Member
    Joined
    Sep 2009
    Posts
    162
    I would say so because there is no power to it, other than zero, making it 0 multiplied the constant. Which is zero. How does one should this mathematically? As well, what does the derived equation tell you have the original equation? I do not understand this.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. regression equation
    Posted in the Statistics Forum
    Replies: 4
    Last Post: December 4th 2010, 07:51 AM
  2. Regression equation
    Posted in the Discrete Math Forum
    Replies: 1
    Last Post: July 20th 2009, 03:24 PM
  3. Using a Regression Equation
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: April 15th 2009, 01:12 PM
  4. Replies: 5
    Last Post: February 23rd 2009, 04:49 PM
  5. Replies: 3
    Last Post: October 23rd 2008, 01:59 PM

Search Tags


/mathhelpforum @mathhelpforum