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Math Help - is it just me?

  1. #1
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    is it just me?

    Is it just me or does it seem like all the vectors in my linear algebra class are from the origion...
    iguess what im trying to say is...

    how would u have a vector going through, lets say 4 on the x axis with a slope of 2?
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  2. #2
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    Quote Originally Posted by mpl06c View Post
    Is it just me or does it seem like all the vectors in my linear algebra class are from the origion...
    iguess what im trying to say is...

    how would u have a vector going through, lets say 4 on the x axis with a slope of 2?
    The reason for this origin only business is because vectors only have a length and a direction, so they can be moved all over the plane, or in space


    You just cant turn the vector to change the direction, but you can always move it to the origin
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  3. #3
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    ok so say a line ran thru 4 on the x axis and had a slope of 2... could you write that as a vector??

    and as for
    "The reason for this origin only business is because vectors only have a length and a direction, so they can be moved all over the plane, or in space"

    that would be a vector in the subspace... correct?
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  4. #4
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    Quote Originally Posted by mpl06c View Post
    ok so say a line ran thru 4 on the x axis and had a slope of 2... could you write that as a vector??

    and as for
    "The reason for this origin only business is because vectors only have a length and a direction, so they can be moved all over the plane, or in space"

    that would be a vector in the subspace... correct?

    Yeah we're in a vector space here

    Um, idk about your intercept slope question in like a matrix form

    Let's say we're on the plane, then via calc 3 and vector based functions we can go with

    [x,y]=[t,2t+4]

    But in a column vector I don't think you can, or it isn't standard at least
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  5. #5
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    [1
    2] times t + [0
    4]

    ??
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  6. #6
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    yeah i guess that works, idk why I was honed in on one particular vector and not a linear combination.... good call
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