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

Part F
Complete the table to find the rule for the reflection, the coordinates of trapezoid PQRS, and the coordinates of the reflected image, trapezoid P′Q′R′S′.

Part G
How does a dilation by a scale factor of change the coordinates of a shape?

Part H
Complete the table to find the rule for the dilation, the coordinates of trapezoid P′Q′R′S′, and the coordinates of the dilated image, trapezoid P″Q″R″S″.

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