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Reflect the triangle STU across the y-axis. What are the coordinates of the new Point S'?

(A.) (6, 9)

(B.) (-6, -9)

(C.) (10, 9)

(D.) (-10, -9)

Reflect the triangle STU across the yaxis What are the coordinates of the new Point SA 6 9B 6 9C 10 9D 10 9 class=