Inactive Tutor answered 01/21/23
For a 90 degree counterclockwise rotation about the origin (x,y) becomes (-y,x).
So your point A (3,4) becomes (-4,3). The y coordinate becomes x and the x coordinate changes to the opposite sign and becomes y.
Arlene C.
asked 01/21/23a graph with coordinates of point A (x,y): A (3,4)
90 degree rotation of point A (x,y):A ( , )
Inactive Tutor answered 01/21/23
For a 90 degree counterclockwise rotation about the origin (x,y) becomes (-y,x).
So your point A (3,4) becomes (-4,3). The y coordinate becomes x and the x coordinate changes to the opposite sign and becomes y.
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