Identify the rotation rule on a coordinate plane that verifies that triangle a(2,-1), b(4,1), c(3,3) and triangle a'(1,2), b'(-1,4), c'(-3,3) are congruent when rotated 90°.

the map notation is (x,y) to (y,-x) at a 90 degree angle

180 degrees map notation is (x,y) to (-x,-y)

360 degrees map notation is (x,y) to (-y,x)

Step-by-step explanation: the answer is they are congruent

Given the coordinates of triangle ABC are   A(2,-1), B(4,1), C(3,3) and coordinates of  triangle A'B'C' are A'(1,2), B'(-1,4), C'(-3,3).

To find the rotation rule that verifies that the triangle ABC and A'B'C' are congruent.

The rule of rotation of 90 degree counterclockwise is given by:

Therefore, the rotation rule that verifies that the triangle ABC and A'B'C' are congruent is

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step-by-step explanation: