Vertices  Reflections&Tranlations?
posted by Tabby .
Thanks for reading this!
A triangular prism has vertices at A(2,1,1) B(2,1,4) C(2,2,1) D(1,1,1) E(1,1,4), and F(1,2,1)?
This question has two parts:
1  Which image point has the coordinates (3,2,1) after a translation using the vector <5,1,3>
I'm thinking it's point B.
2  What point represents a reflection of B over the yz plane?
Of the multiple choice, the four answers did not provide the one I came up with. (I had B'(2,2,4).) They gave me
A  (2,1,4)
B  (2,1,4)
C  (2,2,4)
D  (2,1,4)
Which one should it be and why?
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