Ben performed a transformation on trapezoid PQRS to create PQ'R'S, as shown in the figure below:
10 +
109-8-7-6-5-4-3-21 + 1 2 3 4 5 6 7 8 9 10
R
Q
R
What transformation did Ben perform to create P'Q'R'S? (6 points)
Rotation of 90° counterclockwise about the origin
O Reflection across the y-axis
Reflection across the line of symmetry of the figure
O Rotation of 270° counterclockwise about the origin