Results 1 to 3 of 3

Math Help - Writing Equations from Relations (With Fractions for the y)

  1. #1
    Newbie
    Joined
    Oct 2007
    Posts
    3

    Writing Equations from Relations (With Fractions for the y)

    I'm trying to write equations from some relations, but the problem is that, for y, there's fractions and I'm not quite sure how to deal with them. Any help would be greatly appreciated.

    The problem is as follows:

    Write an equation for each relation. Then complete each chart.

    This is the chart, but since I don't know how to make a real chart, I suppose my makeshift one will have to do.

     x | 0 | 1 | 2 | 3 | 4 | 5
    _________________________________

     y|3|\frac{12}{5}|\frac{9}{5}|(blank)|(blank)|(blan  k)

    3 is supposed to be under 0 and \frac{12}{5} under 1 and so on.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by Backle View Post
    I'm trying to write equations from some relations, but the problem is that, for y, there's fractions and I'm not quite sure how to deal with them. Any help would be greatly appreciated.

    The problem is as follows:

    Write an equation for each relation. Then complete each chart.

    This is the chart, but since I don't know how to make a real chart, I suppose my makeshift one will have to do.

     x | 0 | 1 | 2 | 3 | 4 | 5
    _________________________________

     y|3|\frac{12}{5}|\frac{9}{5}|(blank)|(blank)|(blan  k)

    3 is supposed to be under 0 and \frac{12}{5} under 1 and so on.
    the relationship is y = \frac {15 - 3x}5
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member

    Joined
    May 2006
    From
    Lexington, MA (USA)
    Posts
    11,857
    Thanks
    739
    Hello, Backle!

    I'm trying to write equations from some relations,
    but the problem is that, for y, there's fractions.
    I'm not quite sure how to deal with them.

    Write an equation for each relation. Then complete each chart.

    \begin{array}{cccccccccccccc}<br />
x &|& 0 &|& 1 &|& 2 &|& 3 &|& 4 &|& 5 &| \\ \hline<br />
y &|& 3 &|& \frac{12}{5} &|& \frac{9}{5} &|& &|& &|& &| <br />
\end{array}

    Note that the y-values are: . \frac{15}{5},\;\frac{12}{5},\;\frac{9}{5},\;\cdots

    The y-values start at 3 and "go down" by \frac{3}{5} at each step.

    The formula is: . f(n) \;=\;3 - \frac{3}{5}n

    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Writing Equations
    Posted in the Algebra Forum
    Replies: 7
    Last Post: December 7th 2011, 06:38 PM
  2. [SOLVED] writing Fractions in Order
    Posted in the Algebra Forum
    Replies: 4
    Last Post: November 21st 2010, 11:55 PM
  3. Replies: 6
    Last Post: April 25th 2010, 12:34 AM
  4. Writing Fractions as Products
    Posted in the Algebra Forum
    Replies: 2
    Last Post: June 8th 2008, 02:52 PM
  5. writing equations
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: December 6th 2007, 07:14 PM

Search Tags


/mathhelpforum @mathhelpforum