lexiemari
If pentagon ABCDE is rotated 180° around the origin to create pentagon A’B’C’D’E’, what is the ordered pair of point A’?
(2, -4)
(-4, -2)
(-2, -4)
(4, 2)
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lexiemari
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dpaInc
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just take the opposite of each coordinate in the preimage
lexiemari
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still need help :(
shivamsinha
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Point A with coordinates (x,y) rotated 180 degrees around O gives point A' with coordinates (-x,-y).
joeywhite
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looks like (2, -4)
dpaInc
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look at what what @shivamsinha says...
what are the coordinates of A? just take the opposite of each coordinate and you'll have your answer.
dpaInc
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hello?
shivamsinha
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@dpaInc it seems c dsnt wants 2 knw d concept behind