The point (1, 1) is the image under the translation (x, y) -> (x +3, y-3). What is the preimage of this point?
? +3 =1?
@OOOPS -2?
yes, then ?-3 =1?
@OOOPS 4
answer me, please
@OOOPS I just responded, I said 4
so (-2,4) is the preimage, because if the preimage is (x,y) then the image is (x+3, y-3) your point is (-2,4) so -2+3 =1 and 3-3 =1 give you the image of (-2,4) is (1,1) got what I mean? |dw:1402624551682:dw|
@OOOPS Thank you so much! Your image really helps, that was very thoughtful!
glad to see you got it.
@OOOPS could you help me with another?
may or may not until I see the problem.
A dilation has center (0, 0, 0). Find the image of the point (-1, -2, 0) for the scale factor of 3.
just time 3 to the point to get the new point
So??? you don't know?
|dw:1402625283007:dw|
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