Question

Janet rotated 90° clockwise about the origin tocreate figure A'B'C'. Which rule describes thetransformation used to create Triangle A'B'C'?A. (x,y) → (-x.-y)B. (x,y) → (-y, x)C. (x, y) + (-y, -x)D. (x,y) → (y, -x)

Answer 1

The rotation of triangle ABC about the origin can be represented as,

So, the new cordinates is such that y coodinate becomes negative of x coordinate and x coordinate is equal to y coordinate.

So option B is correct.