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Axes are rotated 90° counterclockwise. The point (3, 4) gets new coordinates
A(3, -4)
B(-3, -4)
C(4, -3)
D(-4, 3)
Answer & Solution
Correct answer: C. (4, -3)
With x' = x cosθ + y sinθ and y' = -x sinθ + y cosθ at θ = 90°, x' = 4 and y' = -3.
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