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Math Help - vector equation

  1. #1
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    vector equation

    find the vector equation for the line passing through point (5, -1) and perpendicular to the vector i+j.



    thanks in advance.
    (:
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  2. #2
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    Quote Originally Posted by overduex View Post
    find the vector equation for the line passing through point (5, -1) and perpendicular to the vector i+j.
    You need a line though (5,-1) with direction vector <1,-1>.
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  3. #3
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    Quote Originally Posted by Plato View Post
    You need a line though (5,-1) with direction vector <1,-1>.
    I understand that. but what is the vector equation form. In other words, I want to know how to put it in vector equation form. What is vector equation form?

    Sorry, this is probably a simple task, but unfortunately my teacher does not teach.
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  4. #4
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    \left\langle {5, - 1} \right\rangle  + t\left\langle {1, - 1} \right\rangle  = \left\langle {5 + t, - 1 - t} \right\rangle  = \left\{ \begin{gathered}<br />
  x = 5 + t \hfill \\<br />
  y =  - 1 - t \hfill \\ <br />
\end{gathered}  \right.<br />
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