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fredd
[130]
3 years ago
7
The image of a point after a –90° rotation about the origin is (–4, 7). What are the coordinates of the preimage?.
Mathematics
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answer:
ahrayia
[7]
3 years ago
4
0
The coordinated of the preimage would be :
x = x cos θ + y sin θ
y = x sin θ + y cos θ
where
x = -4
y = 7
θ = -90
hope this helps
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