Question

What is the image of (1, -6) for a 90° counterclockwise rotation about the origin?

(-6, -1)

(-1, -6)

(-1, 6)

(6, 1)

Answer 1

D

Explanation:

As the counter clockwise rule is A(x,y) becomes A'(-y,x).

So (1, -6) becomes (6, 1)

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