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    How do I find the position vector from this:
    I think Im suposed to use Simultaneous equations maybe

    r=(1+2p)i+(3+p)j , r=(3+u)i + (2+u)j
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    (Original post by joyoustele)
    How do I find the position vector from this:
    I think Im suposed to use Simultaneous equations maybe

    r=(1+2p)i+(3+p)j , r=(3+u)i + (2+u)j
    What does the question actually say?
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    (Original post by Charliewiz)
    What does the question actually say?
    Oh Damn. Im so sorry. I missed out one key bit of information. This wont happen again.

    The question says:

    Find the position vector of the point of intersection of the following pairs of lines.

    I think I have done it anyway though. I just had to equate the i and j components to each other, and solve by simultaneous equations.
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    (Original post by joyoustele)
    Oh Damn. Im so sorry. I missed out one key bit of information. This wont happen again.

    The question says:

    Find the position vector of the point of intersection of the following pairs of lines.

    I think I have done it anyway though. I just had to equate the i and j components to each other, and solve by simultaneous equations.
    Then yes, you've done it. Subbing p or q into one eq or the other yields the position vec.
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    yes, you just make the i bits match up and the j bits match up.
 
 
 
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