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anonymous

  • one year ago

Three vertices of a rectangle are given. Find the coordinates of the fourth vertex. (–2, 4), (4, 0), (2, –3) A. (–4, –1) B. (–4, 0) C. (–4, 1) D. (–4, 2)

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  1. anonymous
    • one year ago
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    @just_one_last_goodbye

  2. mathmate
    • one year ago
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    Are you working on analytic geometry or transformations?

  3. anonymous
    • one year ago
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    idk

  4. mathmate
    • one year ago
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    Oh well, how do you intend to solve the problem?

  5. anonymous
    • one year ago
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    idk

  6. mathmate
    • one year ago
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    What are you currently learning in math?

  7. anonymous
    • one year ago
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    this

  8. mathmate
    • one year ago
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    Ok, your teacher gave you this problem at one point in time. So what did you learn before that?

  9. anonymous
    • one year ago
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    hmmmmm i cant remember what it is called

  10. anonymous
    • one year ago
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    @iGreen

  11. mathmate
    • one year ago
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    Have you learned about lines,points, parallel lines? Have you learned about properties of a rectangle? Have you learned about rotations, reflections, translations? Tell me any and everything you have learned from the above.

  12. anonymous
    • one year ago
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    ya that is what it is called the first one

  13. mathmate
    • one year ago
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    Ok, that's analytic geometry.

  14. anonymous
    • one year ago
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    yep

  15. mathmate
    • one year ago
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    Do you know the properties of a rectangle? Like - opposite sides parallel - adjacent sides perpendicular ...

  16. anonymous
    • one year ago
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    no

  17. anonymous
    • one year ago
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    i think the anser is c

  18. mathmate
    • one year ago
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    What make you think it's C?

  19. anonymous
    • one year ago
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    i try to get the 4th vortex

  20. anonymous
    • one year ago
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    and that is what i got

  21. mathmate
    • one year ago
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    How did you find it to be C, and not A, B, or D?

  22. anonymous
    • one year ago
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    idk this is just what i got

  23. mathmate
    • one year ago
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    guess?

  24. anonymous
    • one year ago
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    no i dident guess

  25. mathmate
    • one year ago
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    |dw:1433167776197:dw|

  26. mathmate
    • one year ago
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    One way to solve it is by graphing it (see above) Another way is to calculate the coordinates using analytic geometry, that might take 4-6 minutes. The third way is to use a 180 rotation about the centre of the rectangle, that takes about 20 seconds.

  27. anonymous
    • one year ago
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    i did and got c

  28. anonymous
    • one year ago
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    i am ganna check

  29. anonymous
    • one year ago
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    by looking it up

  30. anonymous
    • one year ago
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    brb

  31. mathmate
    • one year ago
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    Good, (-4,1) is correct. Please use the answer instead of the letter preceding the answer to avoid miscommunication.

  32. anonymous
    • one year ago
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    ya just looked it up thx

  33. mathmate
    • one year ago
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    You're welcome! :)

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