Triangle ABC has coordinates A(2, -5), B(1, -3), and C(6, 1). If the triangle is rotated 90° counterclockwise about the origin, what are the coordinates of A'?

A(5,2)

Step-by-step explanation:

A 90 degree rotation counterclockwise is

(x , y) -> (-y , x)

Therefore the coordinates of A changes from

A(2 , -5) to A(-(-5) , 2)

A(5,2)

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step-by-step explanation: