The coordinates of Y are (0,3)
Step-by-step explanation:
Given that the coordinate of Y'' is (3,0)
We need to determine the coordinates of Y
Coordinates of Y:
The transformation rule for rotating a point 90° about the origin is given by

Since, the Y'' coordinate is (3,0) and substituting x = 3 and y = 0 in the above rule, we get,

Thus, the coordinates of Y is (0,3)