Results 1 to 8 of 8

Math Help - polynomial functions.

  1. #1
    Newbie
    Joined
    Nov 2011
    Posts
    10

    polynomial functions.

    I do not understand how to do these type of questions and there are no examples in the book so I came here.

    Directions: Determine if each expression is a polynomial in one variable. If the expression is a polynomial in one variable, state the degree.

    Problems:
    a^3+ 2a + square root of 3
    1/x = 1/2x
    2m^3 + 5m^7 + 9
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    11,656
    Thanks
    1480

    Re: polynomial functions.

    Quote Originally Posted by needprecalchelp View Post
    I do not understand how to do these type of questions and there are no examples in the book so I came here.

    Directions: Determine if each expression is a polynomial in one variable. If the expression is a polynomial in one variable, state the degree.

    Problems:
    a^3+ 2a + square root of 3
    1/x = 1/2x
    2m^3 + 5m^7 + 9
    A polynomial can be written as \displaystyle \begin{align*} c_0 + c_1x + c_2x^2 + c_3x^3 + \dots \end{align*}

    Do any of these fit that format?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Nov 2011
    Posts
    10

    Re: polynomial functions.

    i guess all of them do. I'm not sure about the second one though.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    11,656
    Thanks
    1480

    Re: polynomial functions.

    Quote Originally Posted by needprecalchelp View Post
    i guess all of them do. I'm not sure about the second one though.
    Is the second one \displaystyle \begin{align*} \frac{1}{x} = \frac{1}{2}x \end{align*} or \displaystyle \begin{align*} \frac{1}{x} = \frac{1}{2x} \end{align*} ?
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Nov 2011
    Posts
    10

    Re: polynomial functions.

    \displaystyle \begin{align*} \frac{1}{x} = \frac{1}{2x} \end{align*} this one
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    11,656
    Thanks
    1480

    Re: polynomial functions.

    Quote Originally Posted by needprecalchelp View Post
    \displaystyle \begin{align*} \frac{1}{x} = \frac{1}{2x} \end{align*} this one
    It's definitely not a polynomial, in fact, there's no value of x that can satisfy that equation, since when you multiply both sides by x, you get 1 = 1/2.
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Newbie
    Joined
    Nov 2011
    Posts
    10

    Re: polynomial functions.

    well if that's all i needed to do for these problems then thanks
    Follow Math Help Forum on Facebook and Google+

  8. #8
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,880
    Thanks
    668

    Re: polynomial functions.

    Quote Originally Posted by needprecalchelp View Post
    well if that's all i needed to do for these problems then thanks
    review the definition of a polynomial ...

    Polynomial Function Definition | Zona Land Education
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Polynomial Functions
    Posted in the Algebra Forum
    Replies: 3
    Last Post: October 30th 2008, 04:46 PM
  2. Polynomial Functions
    Posted in the Algebra Forum
    Replies: 2
    Last Post: October 3rd 2008, 12:07 PM
  3. Odd Polynomial Functions
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: September 4th 2008, 11:49 AM
  4. Polynomial Functions
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: February 19th 2008, 04:56 PM
  5. polynomial functions help
    Posted in the Algebra Forum
    Replies: 4
    Last Post: November 27th 2007, 09:56 PM

Search Tags


/mathhelpforum @mathhelpforum