Geometry help?
In dilation? i know how to work with \[D _{0,2}\] but i dont know how to with this: \[D _{x,2}\]
please explain how i'm supposed to take a set of coordinates and using Dx,2 to make them a new set of coordinates.
https://media.glynlyon.com/a_matgeo_2011/9/q1_7l5.gif On the graph are three points XYZ. Enter the coordinates for the given dilation. DZ,2 = X'(__ , __), Y'(__ ,__ ), Z'( __, __)
in \[\huge D_{0,2} \] what does the 0 and 2 mean?
oh, those are coordinates. i know how to solve that one, i'm just confused on the ones with the variables in them. like \[D _{(x,2)}\]
is it the coordinates of the center of dilation? what about scale factor?
scale factor
so (0, 2) is the dilation point?
i'm not familiar with those notations.... sorry, i'm trying to understand those notations...
if it helps, the unit i'm on is transformations. the easy stuff, you know rotations, translations, refletctions etc. the lesson i'm on now is Dilations:Congruence and Similarity..
http://math.tutorvista.com/geometry/dilation.html http://www.mathopenref.com/dilate.html
THESE LINKS MAY HELP YOU ALL THE BEST
@ganeshie8 they gave me this picture https://media.glynlyon.com/a_matgeo_2011/9/q1_7l5.gif and this to fill in: \[D _{0,2}\] = X'( __,__), Y'(__ , __), Z'( __, __) So in my lesson it explained that i was supposed to multiply every coordinate by 2 (because that's what it says in the scale factor (0,2)). So i did and fot \[D _{0,2}\] = X'( 8,0), Y'(6 , 4), Z'( 4, -4) however, they didn't explain how to use \[D _{x,2}\] very well, so that is my question-- what i'm supposed to multiply or add or i dont know..
got* not fot
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