Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (freemap):
ILovePuppiesLol (ilovepuppieslol):
ill try to help :P
ILovePuppiesLol (ilovepuppieslol):
idk >_<
OpenStudy (btaylor):
The series of transformations results in a congruent image if it is not scaled at all. Any transformation (x,y) -> (a*x, a*y) scales the image unless a is 1 or -1. So, looking at each of the series of transformations, look for ones without a scaling step.
OpenStudy (freemap):
so you're saying that every number that has a 1 or -1 its is wrong? @BTaylor
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (freemap):
@Michele_Laino
OpenStudy (michele_laino):
what do you tink it is?
OpenStudy (michele_laino):
think*
OpenStudy (freemap):
I don't know
OpenStudy (michele_laino):
when an image is congruent to a pre-image?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (freemap):
is is = to the pre image
OpenStudy (michele_laino):
I think that we get such congruence with traslations, rotations, and reflections, and \(not\) with dilations
now the subsequent transformation:
\[\Large \left( {x,y} \right) \to \left( {0.5x,0.5y} \right)\]
is a dilation, so it is not the requested transformation
OpenStudy (michele_laino):
so, the right options, are the options which don't contain dilations
OpenStudy (michele_laino):
furthermore, also this transformation:
\[\Large \left( {x,y} \right) \to \left( {9x,9y} \right)\]
is a dilation
OpenStudy (michele_laino):
so, what can you conclude?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (freemap):
C is a dilation
OpenStudy (michele_laino):
so, option C is wrong
OpenStudy (freemap):
A is the correct answer
OpenStudy (michele_laino):
yes!
OpenStudy (freemap):
Thank you
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (michele_laino):
please wait, there is another correct option
OpenStudy (freemap):
B
OpenStudy (michele_laino):
B is wrong, since it contains a dilation
\[\left( {x,y} \right) \to \left( {0.5x,0.5y} \right)\]
OpenStudy (freemap):
D
OpenStudy (michele_laino):
that's right!
Still Need Help?
Join the QuestionCove community and study together with friends!