Hugo reflects a vector v across the line y = –x. Nemo rotates a vector v 180° counterclockwise about the origin. Which of the following vectors would have the same image for Hugo and Nemo?

Question

anonymous · Answer

options

anonymous · Answer

I'm thinking 'B'.

amistre64 · Answer

B doesnt seem goo to me

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anonymous · Answer

Oh. :/ I just thought because of the reflection properties of matrices it would be 'B', but I guess not. I'm lost.

amistre64 · Answer

matrixes might be useful here but seems to me like overkill.

1,-1  reflects to 1,-1,  but rotates to -1,1

what would be ideal is for a vector of the form  a,a

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