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bealiberty47

  • one year ago

Math shape translation question

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  1. bealiberty47
    • one year ago
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  2. bealiberty47
    • one year ago
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    @amistre64

  3. bealiberty47
    • one year ago
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    @phi @ganeshie8

  4. amistre64
    • one year ago
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    well, we might want to consider moving one onto the other to get an idea .... any thoughts one a convenient start ?

  5. bealiberty47
    • one year ago
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    well I'm redoing this for a better grade, but the first time my answer was x + 2, y + 2

  6. triciaal
    • one year ago
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    to have a reflection over the x-axis the x value stays the same and the y-value moves to -y example a point (2,3) will move to (2, -3) (x, y) goes to (x, -y)

  7. amistre64
    • one year ago
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    well, since we are trying to get the top towards the bottom, and flipped, id say we line up the C points x+2, y-2 should at least get us that far

  8. amistre64
    • one year ago
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    then using C as a pivoting points, we can find the midpoint between A and A', or B and B' and use that to define the line of reflection

  9. amistre64
    • one year ago
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    |dw:1433956204842:dw|

  10. bealiberty47
    • one year ago
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    but doesn't it say that the student already did a reflection? I don't get it shouldn't I just move it two spaces to the right and two down?

  11. amistre64
    • one year ago
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    oh, yeah it does say that .... these old eyes of mine

  12. bealiberty47
    • one year ago
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    but then I don't understand why I got it wrong

  13. amistre64
    • one year ago
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    there is no real good way to approach this since the original setup is not well defined.

  14. triciaal
    • one year ago
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    the student did a reflection so now you are at A'B'C' and need to get to A"B"C"

  15. bealiberty47
    • one year ago
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    so ABC is the result after the student reflected it?

  16. amistre64
    • one year ago
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    C is defined well enough, but A and B are not ....

  17. amistre64
    • one year ago
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    ABC is the start, the other is the end

  18. bealiberty47
    • one year ago
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    I just don't understand if ABC is before or after the student reflected it

  19. amistre64
    • one year ago
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    it seems youve got a better bead on it, your movement is bad most likely due to the interval seperation along the axises

  20. amistre64
    • one year ago
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    ABC is before reflection

  21. triciaal
    • one year ago
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    review my response for example C(4,4) is now at (4, -4) but C" is at (6,2) so moved (x + 2, y + 6)

  22. amistre64
    • one year ago
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    |dw:1433956590439:dw|

  23. triciaal
    • one year ago
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    to complete the move need to go from A'B'C' to A"B"C" need 2 places right and 6 places up

  24. amistre64
    • one year ago
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    |dw:1433956669613:dw|

  25. bealiberty47
    • one year ago
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    so the answer is X + 2, y + 6?

  26. triciaal
    • one year ago
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    yes

  27. bealiberty47
    • one year ago
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    Thanks for the help :)

  28. triciaal
    • one year ago
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    welcome

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