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When point E (9, 3) is rotated 180� about the origin, its coordinate becomes (3, 9).
True
False
 2 years ago
 2 years ago
When point E (9, 3) is rotated 180� about the origin, its coordinate becomes (3, 9). True False
 2 years ago
 2 years ago

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shinigami1mBest ResponseYou've already chosen the best response.1
how do you know its 9 3?
 2 years ago

mathmateBest ResponseYou've already chosen the best response.3
If you substitute the rotation matrix for 180 degrees, you'd get the rule T180(x,y)=(x,y), so the rotated point should be (9,3)
 2 years ago

theabsurdBest ResponseYou've already chosen the best response.0
^know that, or you become a lazy slob like me who imagined it on the coordinate plane instead of remembering the rule. (Facepalm)
 2 years ago

mathmateBest ResponseYou've already chosen the best response.3
You have a point. But to help someone, we need something concrete to work on.
 2 years ago

myininayaBest ResponseYou've already chosen the best response.0
I see nothing wrong with imagining it on a coordinate plane. The rule makes more since that way.
 2 years ago
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