Please Help! Chanel says the sequence of transformations that maps trapezoid PQRS onto trapezoid KLMN is: rotate it 90 degrees counterclockwise, and then dilate it by a scale factor of 1/2.

Preston says the sequence of transformations that maps trapezoid PQRS onto trapezoid KLMN is: reflect it across the x-axis, and then dilate it by a scale factor of 1/2.

Part E

Now look at Preston’s sequence. How does a reflection across the x-axis change the coordinates of a shape.

Part G

How does a dilation by a scale factor of 1/2 change the coordinates of a shape?

Part I

Whose sequence proves trapezoid PQRS is similar to trapezoid KLMN? Why?