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Homework Help: Vectors and transformations

  1. Jan 16, 2010 #1
    1. The problem statement, all variables and given/known data
    The origin (0,0) is in the upper left corner of the image. +x axis goes to the right while +y axis goes down. The artist draws a line from the pixel location (10,20) to the location (210,200) . She wishes to draw a second line that starts at (10,20), is 270 pixels long, and is at angle of 30deg measured clockwise from the first line. At which pixel location should this second line end? Give your answer to the nearest pixel.
  2. jcsd
  3. Jan 16, 2010 #2


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    Homework Helper

    Where are your relevant equations? Where's your attempt at a solution?
  4. Jan 17, 2010 #3
    I tried solving for the magnitude, but realized I had two missing variables i had to solve for
    250=sqrt[(10+x)^2 + (20+y)^2] .. this didn't work
    i tried adding the first two vectors to get (220,220) but didn't know what to do after that

    i'm just lost......
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