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anonymous
 one year ago
In the figure, polygon ABCD is dilated by a factor of 2 to produce A′B′C′D′ with the origin as the center of dilation. Where is point A' and D' located at??
anonymous
 one year ago
In the figure, polygon ABCD is dilated by a factor of 2 to produce A′B′C′D′ with the origin as the center of dilation. Where is point A' and D' located at??

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e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3When you dialate with a factor of 2, do you know what you do to the points?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no i dont understand at all. its my first day veiwing geometry

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3Well, dialate can sort of be explained as scaling. If I scale a drawing it means to change the size. That help?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea but what do i do with the points, do i divide or anything is there an equation??

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3Well, the factor is what the change in size is. You do not devide by it when going from the original to the changed one.

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3dw:1435471251448:dw If a is a 1 by 1 box and b is a 4 by 4 box, then a is dialated to b by multiplying all points by 4. However, if I wanted to dialate from b to a I would multiply all points by \(\tfrac{1}{4}\).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so in this problem would I multiply all the points by 1/2??

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3No. They gave you a factor of 2. So it needs to double in size.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so i multiply the points. so the word dilate could also mean to get bigger in size??

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3Yes, you multiply. Dialate means scale or change in size. If you scale by \(\tfrac{1}{4}\) then it would get smaller. So it can be bigger or smaller. It just depends on if the factor is greater than one or between 0 and 1.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OMG THANKS SO MUCH! i got it righ!

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3Some examples here too: http://regentsprep.org/regents/math/geometry/GT3/indexGT3.htm But yah, once you get the idea that the dialation fact is the key for how much bigger or smaller it is, then it begins to make sense. Oh, and you can end up with fractions that make it bigger, like \(\tfrac{3}{2}\). It is more than 1 since it is 3 halfs, so it would still make it bigger.

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3So, what points did you get for A' and D' in (x,y) form?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got 2,2 and 4,2

e.mccormick
 one year ago
Best ResponseYou've already chosen the best response.3Yep. So you understand it just fine as far as I can see. =)
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