Question

Which of the following is the rule for rotating the point with coordinates (x,y), 90° clockwise about the origin?A. (x,y)→(y,−x)B. (x,y)→(x,−y)C. (x,y)→(y,x)D. (x,y)→(−y,x)

Answer 1

To rotate the point with coordinates (x, y) 90° clockwise about the origin, we use the following transformation:

`(x,y)\rightarrow(y,x)`