A line segment with endpoints at (1 , -8 ) and (2, -2 ) is rotated clockwise by (3 pi)/2. What are the new endpoints of the line segment?

1 Answer
Jim G.
Oct 21, 2016

(1,-8)to(8,1),(2,-2)to(2,2)

Explanation:

Assuming the rotation is about the origin. Then under a clockwise rotation of (3pi)/2

a point (x ,y) → (-y ,x)

hence (1 ,-8) → (8 , 1 ) and (2 ,-2) → (2 ,2)

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