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anonymous
 one year ago
Is one flag a translation image of the other, or rotation image? Explain.
http://assets.openstudy.com/updates/attachments/55b931b0e4b0adef802b8fe6lollygirl2171438293958142as.jpg
My answer is: translation. each point in the image is shifted up (or down depending on point of view) the same amount from one to the other
to find a center of rotation, you need to find the intersection of the perpendicular bisectors of the lines connecting the image to the preimage and those lines will all be parallel so there is no rotation. Is that a good enough for answer?
anonymous
 one year ago
Is one flag a translation image of the other, or rotation image? Explain. http://assets.openstudy.com/updates/attachments/55b931b0e4b0adef802b8fe6lollygirl2171438293958142as.jpg My answer is: translation. each point in the image is shifted up (or down depending on point of view) the same amount from one to the other to find a center of rotation, you need to find the intersection of the perpendicular bisectors of the lines connecting the image to the preimage and those lines will all be parallel so there is no rotation. Is that a good enough for answer?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Another question: Describe the image of 'D' first reflected across line l & then across line m. http://assets.openstudy.com/updates/attachments/515c5dfae4b07077e0c1d60evt1365007876700d.png My answer: http://assets.openstudy.com/updates/attachments/515c5dfae4b07077e0c1d60evt1365007876700d.png Is that good enough? 3rd question:

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The dashed triangle is a dilation image of the solid triangle with the center at the origin. Is the dilation an enlargement or a reduction? Find the scale factor of the dilation. http://assets.openstudy.com/updates/attachments/55ba8e27e4b0aa1bfb5ce088lollygirl2171438303570754as.jpg I actually am not sure on this one.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 @campbell_st

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@EclipsedStar @KyanTheDoodle @mathway @triciaal @campbell_st @Loser66

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It's been literally over 6 hours.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0helllllllllllloooooooooooooo??? I literally have spent all day trying to get help...

Australopithecus
 one year ago
Best ResponseYou've already chosen the best response.0Yeah that seems fine

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The first on is? You can't just be telling me that, TELL ME if there is something more. I have waited literally all day for this to be answered and I do not want any mistakes on my assignment!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I still cant believe i haven't gotten an answer...

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Are you still working on the second one? The dilation one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No. Is the first one good btw?

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1For the first one, is your answer that nothing changes? D returns to where it was before? It looks like you might have posted the same screenshot twice by accident...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is my answer for number one. translation. each point in the image is shifted up (or down depending on point of view) the same amount from one to the other to find a center of rotation, you need to find the intersection of the perpendicular bisectors of the lines connecting the image to the preimage and those lines will all be parallel so there is no rotation. Is that a good enough for answer?

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1OK, I'm sorry, I was thinking about the "D" question. I'll look at your original question. How many questions did you post on this thread?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The second one I messed up on though...

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1OK, I like your answer for the first question (the flag images). I would probably have ignored explaining that it wasn't a rotation since that is sort of obvious from the diagram, but your explanation seems correct.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.02.) Describe the image of 'D' first reflected across line l & then across line m. my answer: the letter d inverts laterally after crossing the line 1, and it becomes normal when it again crosses line m. It goes inverted and normal like an on/off switch. Is that a good enough explanation

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Sorry, just juggling questions here. :)

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1No worries, you were ignored for pretty much the whole day it seems, so I can appreciate that. :)

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Instead of saying "crossing" I would say "reflecting over" on each line part. I really like the on/off switch analogy. I guess you could say that the end result is basically the same as a translation right? We did all this crazy reflecting stuff, and the result was just a slide over to the right. :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I just want to make sure it has enough detail and everything.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1As long as an explanation is clear, accurate, and precise that should satisfy anyone. If your explanation convinces yourself, then you probably did a good job. You went above and beyond the lazy "because it is" explanation :P. lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0True, lol. And the first one is good as well? Sorry if I missed you saying yes or no.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1The flag question? Yes it looked fine. I think I had said that I personally wouldn't have bothered to explain that it isn't a rotation because that seemed obvious from the diagram, but yes, it looked correct.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1How was the third question? The triangle one?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Right. Sorry hold on for a quick second.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1be right back, checking on another question :) just tag me on your reply

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Find the image vertices for a dilation with center (0,0) and a scale factor of 4.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am really not so sure on this.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1sorry, back, openstudy is lagging a bit on my internet.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Mmm... not quite, they want you to find the coordinates for each of the four vertices. The graph isn't perfect, but I'm guessing we start with A(3,1), B(4,3), C(2,3), and D(1,4). We will dilate these.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1So, since our scale factor is 4, we literally just have to multiply each coordinate by 4. It's that easy. So, A(3,1) becomes (12,4). And so on.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh, that is pretty easy.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So when you mean by multiply...you mean it would result in (12,4) (48,16)

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Good question. I suppose my sentence was a little misleading. What I mean is that we do this for EACH of the four coordinates: So, A(3,1) becomes (12,4) we are done with A. Then, B(4,3) becomes (16, 12). we are done with B. Do this for C. Do this for D. Does that clarify a little?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry again. But is that all after that?

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1Yep, just list the image vertices coordinates. If you want to look extra "mathy" We usually write the image coordinates with a little apostrophe above them so A(3,1) is the preimage coordinate and A' (12,4) is the image coordinate for example.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I ended with saying vertices A' (12,4) B'(16,12) C'(4,12) D'(4,16)

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1C' should be (8,12) if I'm not mistaken. Other than that looks good.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0....Lol. How could I even well its late. That is finally it. Thank you for all of the help~!

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.1You are welcome. You've been staring at the same problems for a while now... believe me, strange stuff happens when you do that. :) Have a good night!
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