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anonymous

  • one year ago

ΔABC with vertices A(-3, 0), B(-2, 3), C(-1, 1) is rotated 180° clockwise about the origin. It is then reflected across the line y = -x. What are the coordinates of the vertices of the image?

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  1. taramgrant0543664
    • one year ago
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    |dw:1438492100436:dw| So this is a kind of bad attempt on drawing the initial triangle, so you have to determine which point is your point of origin first so that we can rotate it 180 degrees

  2. taramgrant0543664
    • one year ago
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    The origin is where the two axis meet so right as (0,0) so we will have to rotate the triangle 180 degrees round that point

  3. taramgrant0543664
    • one year ago
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    |dw:1438492499423:dw| Do you have a guess on what those coordinates are for the new triangle?

  4. taramgrant0543664
    • one year ago
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    A is at (3,0) instead of (-3,0) B is at (2,-3) instead of (-2,30 C is at (1,-1) instead of (-1,1)

  5. taramgrant0543664
    • one year ago
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    After that you will want to reflect it across the line y=-x to determine your final triangle

  6. taramgrant0543664
    • one year ago
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    You're final triangle will have the points A(0,-3) B(-3,2) C(-1,1) I'm pretty sure it should be these points

  7. anonymous
    • one year ago
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    yes as taramgrant said .. going by similar procedure we will have the points of the reflected traingle(shown as dashed)|dw:1438493029033:dw|

  8. taramgrant0543664
    • one year ago
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    Just realized that my B point for the reflection was wrong I just put the negatives in the wrong place B should be (3,-2) Nick's drawing is right there if you want to do it all together or you can do each step individually depending on what's best for you

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