anonymous
  • anonymous
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)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
anonymous
  • anonymous
help please
anonymous
  • anonymous
Do you need help with both parts?

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anonymous
  • anonymous
This is geometry, isn't it?
anonymous
  • anonymous
Yeah. Coordinate Geometry.
anonymous
  • anonymous
yes i need help with both parts
anonymous
  • anonymous
Do you know what a Dilation and Translation is?
anonymous
  • anonymous
translation is it when you move the figure to the opposite side from where it is
anonymous
  • anonymous
And what about a dilation, rajfk?
anonymous
  • anonymous
Translation isn't the opposite side one. Isn't reflection the one that you described?
anonymous
  • anonymous
i do not know that one Darlin
anonymous
  • anonymous
It's when the figure gets bigger or smaller by a certain factor.
anonymous
  • anonymous
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)
anonymous
  • anonymous
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)
anonymous
  • anonymous
okay
anonymous
  • anonymous
So for the first part, translations make geometric objects stay congruent
anonymous
  • anonymous
Because the distances are all still the same
anonymous
  • anonymous
okay i get that part now
anonymous
  • anonymous
Couldn't have said it better myself :)
anonymous
  • anonymous
So you find the coordinates for all 4 points and add or subtract whatever you want to them to get the first part
anonymous
  • anonymous
Shift all the points one column to the right if you're feeling lazy
anonymous
  • anonymous
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
anonymous
  • anonymous
Lazy doesn't get u anywhere.... I know that from experience, but it can work. Just make sure you double check your work...
anonymous
  • anonymous
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
anonymous
  • anonymous
XD
anonymous
  • anonymous
raj. How are you holding up?
anonymous
  • anonymous
Raj? You there?
anonymous
  • anonymous
yes i am
anonymous
  • anonymous
Are you done? Or do you still need me?
anonymous
  • anonymous
no i still need you
anonymous
  • anonymous
What's up?
anonymous
  • anonymous
part two
anonymous
  • anonymous
Can't you do a proportion for the second part to see that they are similar?
anonymous
  • anonymous
Well, yeah. But that's just for checking it. You would be guessing and checking to get the coordinates
anonymous
  • anonymous
okay. Raj. Give me the coordinates for point A I'm too lazy to find it
anonymous
  • anonymous
hmm... good to know... then I have been doing that part wrong for a long time.....
anonymous
  • anonymous
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?
anonymous
  • anonymous
So then you plug x and y in to get (2[-7],2[3]) or (-14,6)
anonymous
  • anonymous
Which means that A11 is (-14,6). Understand?
anonymous
  • anonymous
Raj?
anonymous
  • anonymous
Well, I understood, but I don't know if Raj did...
anonymous
  • anonymous
Darlin. what are you taking for math next year?
anonymous
  • anonymous
Algebra 2
anonymous
  • anonymous
I am finishing up geometry this week
anonymous
  • anonymous
Right now, I'm on geometric proofs. I don't like it at all...
anonymous
  • anonymous
You have class now? But it's the summer break. And mind looking at this?http://openstudy.com/study#/updates/50207fade4b0fef6292c85b8
anonymous
  • anonymous
Yes, I want to skip a grade in the math department..... and sure!!!!!

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