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rajfk35 Group Title

Observe parallelogram ABCD plotted on the coordinate plane below. Part I: Provide the coordinates of a parallelogram A’B’C’D’ that is congruent to parallelogram ABCD. Explain why these figures are congruent. (4 points) Part II: Provide the coordinates of a parallelogram A’’B’’C’’D’’ that is similar to parallelogram ABCD. Explain why these figures are similar. (6 points)

  • one year ago
  • one year ago

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  1. rajfk35 Group Title
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    • one year ago
  2. rajfk35 Group Title
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    help please

    • one year ago
  3. Grazes Group Title
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    Do you need help with both parts?

    • one year ago
  4. DarlingDare Group Title
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    This is geometry, isn't it?

    • one year ago
  5. Grazes Group Title
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    Yeah. Coordinate Geometry.

    • one year ago
  6. rajfk35 Group Title
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    yes i need help with both parts

    • one year ago
  7. Grazes Group Title
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    Do you know what a Dilation and Translation is?

    • one year ago
  8. rajfk35 Group Title
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    translation is it when you move the figure to the opposite side from where it is

    • one year ago
  9. DarlingDare Group Title
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    And what about a dilation, rajfk?

    • one year ago
  10. Grazes Group Title
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    Translation isn't the opposite side one. Isn't reflection the one that you described?

    • one year ago
  11. rajfk35 Group Title
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    i do not know that one Darlin

    • one year ago
  12. DarlingDare Group Title
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    It's when the figure gets bigger or smaller by a certain factor.

    • one year ago
  13. Grazes Group Title
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    So anyway, translation is when you add random numbers to both x and y. An example of that would be (x,y)--> (x+1,y+3)

    • one year ago
  14. Grazes Group Title
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    Dilation is when something gets smaller or bigger by a constant like Darlin said. An example, if the constant is 2 would be (x,y)-->(2x,2y)

    • one year ago
  15. rajfk35 Group Title
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    okay

    • one year ago
  16. Grazes Group Title
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    So for the first part, translations make geometric objects stay congruent

    • one year ago
  17. Grazes Group Title
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    Because the distances are all still the same

    • one year ago
  18. rajfk35 Group Title
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    okay i get that part now

    • one year ago
  19. DarlingDare Group Title
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    Couldn't have said it better myself :)

    • one year ago
  20. Grazes Group Title
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    So you find the coordinates for all 4 points and add or subtract whatever you want to them to get the first part

    • one year ago
  21. Grazes Group Title
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    Shift all the points one column to the right if you're feeling lazy

    • one year ago
  22. Grazes Group Title
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    For the second part, what you want to do is get the coordinates and multiply x and y by 2. Then you plot the new coordinates you found

    • one year ago
  23. DarlingDare Group Title
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    Lazy doesn't get u anywhere.... I know that from experience, but it can work. Just make sure you double check your work...

    • one year ago
  24. Grazes Group Title
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    Lazy gets you somewhere if you're good at it. But that's just for math. I fell asleep for the math placement test and got double period algebra. But I got an 100 average for it

    • one year ago
  25. DarlingDare Group Title
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    XD

    • one year ago
  26. Grazes Group Title
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    raj. How are you holding up?

    • one year ago
  27. DarlingDare Group Title
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    Raj? You there?

    • one year ago
  28. rajfk35 Group Title
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    yes i am

    • one year ago
  29. Grazes Group Title
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    Are you done? Or do you still need me?

    • one year ago
  30. rajfk35 Group Title
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    no i still need you

    • one year ago
  31. Grazes Group Title
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    What's up?

    • one year ago
  32. rajfk35 Group Title
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    part two

    • one year ago
  33. DarlingDare Group Title
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    Can't you do a proportion for the second part to see that they are similar?

    • one year ago
  34. Grazes Group Title
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    Well, yeah. But that's just for checking it. You would be guessing and checking to get the coordinates

    • one year ago
  35. Grazes Group Title
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    okay. Raj. Give me the coordinates for point A I'm too lazy to find it

    • one year ago
  36. DarlingDare Group Title
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    hmm... good to know... then I have been doing that part wrong for a long time.....

    • one year ago
  37. Grazes Group Title
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    Alright. You're taking too long to find it for me. so A is (-7,3). What you do is make up a random constant like 2. So (x,y)->(2x,2y), right?

    • one year ago
  38. Grazes Group Title
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    So then you plug x and y in to get (2[-7],2[3]) or (-14,6)

    • one year ago
  39. Grazes Group Title
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    Which means that A11 is (-14,6). Understand?

    • one year ago
  40. DarlingDare Group Title
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    Raj?

    • one year ago
  41. DarlingDare Group Title
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    Well, I understood, but I don't know if Raj did...

    • one year ago
  42. Grazes Group Title
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    Darlin. what are you taking for math next year?

    • one year ago
  43. DarlingDare Group Title
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    Algebra 2

    • one year ago
  44. DarlingDare Group Title
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    I am finishing up geometry this week

    • one year ago
  45. DarlingDare Group Title
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    Right now, I'm on geometric proofs. I don't like it at all...

    • one year ago
  46. Grazes Group Title
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    You have class now? But it's the summer break. And mind looking at this?http://openstudy.com/study#/updates/50207fade4b0fef6292c85b8

    • one year ago
  47. DarlingDare Group Title
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    Yes, I want to skip a grade in the math department..... and sure!!!!!

    • one year ago
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