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anonymous
 one year ago
A triangle has coordinates A (1, 5), B (2, 1) and C (0, 4). What are the new coordinates if the triangle is dilated with a scale factor of 1/5 ?
anonymous
 one year ago
A triangle has coordinates A (1, 5), B (2, 1) and C (0, 4). What are the new coordinates if the triangle is dilated with a scale factor of 1/5 ?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do I use the formula A' = A*f?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1437619623775:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But do I use the formula that I mentioned?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0scale factor each length changes by factor to get the new length

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0not sure what your formula represents

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A' stands for the new point, A stands for the original point, and f stands for scale factor

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0with my approach the lengths are changing AB BC and AC start at one location then change to find new coordinates

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The new coordinates I got are A = (1/5 , 1) ; B = (2/5 , 1/5) ; C = (0, 4/5)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Could u help me out?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Are my new coordinates correct @SolomonZelman ?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1There are different ways of dilation, but the most common if you are not asked to do it otherwise is to obtain the distance from the point of origin (0,0) to the coordinates onebyone and factor it. Here is an example.dw:1437621122694:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437621312440:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437621423014:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437621698705:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But this doesn't give me the coordinates...

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1it doesn't right away, but if you think about it, the distance formula is a derivation of the pythagorean theorem, which will allow you to work out the coordinates

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1I am providing you one of the ways to do this, and there will be other methods and they may even prove to be much easier depending on the situation. The point I was trying to drive home is the concept behind scaling factor that may either be a dilation or compression.

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1in other cases, the scaling or dilation may not be from the origin and you might be asked to do it at a certain point. dw:1437621950818:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Are you familiar with this formula? A' = A*f

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437622134720:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1I do not use that formula, but I do know what that is. People write it differently, and all it boils down to is a multiplication or division from of a particular displacement.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0My school gave me that formula, and that's what I used to get the coordinates that I posted earlier

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do u think they're correct? I'm pretty sure they are, but I'm still doubtful...

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1the concept has many applications which we do not have to memorize many formulas, we stick to basic ones. I will show you what I mean. dw:1437622547410:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry... still don't get it...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What did u get for the new coordinates?

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437622635217:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1sorry, I am not going to answer your homework for you. If you really want the coordinates, you will have to understand the concept first and not focus so much on what formula you've been given. https://www.illustrativemathematics.org/contentstandards/tasks/602

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hehe, sorry but the method you're giving me is pretty confusing...

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437623473525:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437624194984:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437624415102:dw

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1you can use the formula your school gave you all you want, but that limits you from understanding what is going on because they did not even explain how they got that formula in the first place. My concern before was that it was not emphasized that the formula you have was not a restricted dilation from the origin (0,0)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok, I'll try to work on it.

nincompoop
 one year ago
Best ResponseYou've already chosen the best response.1The beauty of what I am trying to show you is that it uses what other math you're familiar with and utilizing them to solve other problems.
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