Triangles ABC and DEF are shown in the graph. 8 B 6 20 X 3F 8 Which sequence of transformations maps AABC onto ADEF? A a dilation by a scale factor of 3 centered at the origin, followed by a reflection across the y-axis B a dilation by a scale factor of 13 centered at the origin, followed by a reflection across the y-ax a dilation by a scale factor of 13 centered at the origin, followed by a reflection across the x-ax a dilation by a scale factor of 3 centered at the origin, followed by a reflection across the x-axis