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anonymous

  • one year ago

The point A(-2, 3) is translated using T: (x,y) → (x + 4, y + 2). What is the distance from A to A'? 2 5 2

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  1. anonymous
    • one year ago
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    Square root of 6 2 squared 2 5 or 2 squared 5

  2. MrNood
    • one year ago
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    if you move the point (-2,3) by adding 4 to the x value, and 2 to the y value what is the new point?

  3. anonymous
    • one year ago
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    2,5 ?

  4. anonymous
    • one year ago
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    2 sqaured 5?

  5. MrNood
    • one year ago
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    (2,5) is the new point (but that does not give th e answer) slow down a little

  6. MrNood
    • one year ago
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    |dw:1435090282297:dw|

  7. MrNood
    • one year ago
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    |dw:1435090347709:dw| So what is the length of each of the black lines?

  8. anonymous
    • one year ago
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    Is the answer 5?

  9. anonymous
    • one year ago
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    4 and 2? are thouse the lengths

  10. MrNood
    • one year ago
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    yes - So you can see a right angle triangle: |dw:1435090449711:dw| What is the length of the long side?

  11. anonymous
    • one year ago
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    do i square 4 and 2 and get 20 when added up?

  12. anonymous
    • one year ago
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    and 2 squared 5 when simplified

  13. MrNood
    • one year ago
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    it is \[\sqrt{20} =\sqrt{4*5} = \sqrt{4} * \sqrt{5} = 2\]

  14. anonymous
    • one year ago
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    Okay, thanks

  15. MrNood
    • one year ago
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    sorry - last term should be \[2\sqrt{5}\]

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