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Mathematics 8 Online
OpenStudy (volleyballlover55):

help!

OpenStudy (volleyballlover55):

@Loser66

OpenStudy (loser66):

What is A?

OpenStudy (volleyballlover55):

A 90 degrees counterclockwise rotation about the origin followed by a translation 1 unit to the left

OpenStudy (loser66):

:) I meant the coordinate of A It is (1,2) right?

OpenStudy (volleyballlover55):

yes

OpenStudy (loser66):

Now, test option A) 90 degree counterclockswise gives us (x,y) becomes (-y, x) Then (1,2) becomes (-2,1) Followed by a translation 1 unit to the left. That means A' must be ((-2-1), 1) or (-3,1) Now, look at your A' . is it (-3,1)??

OpenStudy (volleyballlover55):

well can i just tell you what i think the answer is, because i already went through all this..

OpenStudy (loser66):

ok, give me yours. I can check

OpenStudy (volleyballlover55):

ok is it c?

OpenStudy (loser66):

yup

OpenStudy (volleyballlover55):

yay!

OpenStudy (loser66):

wait. I need double check

OpenStudy (volleyballlover55):

ok...

OpenStudy (loser66):

I am sorry, A is the correct answer. I triple check.

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