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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
1 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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