Question

which describes the transformation of trapezoid lmno?

Explanation:

Trapezoid LMNO is reflected over the vertical y-axis (the central vertical grid line) to form trapezoid L'M'N'O'. Each point (x, y) on LMNO maps to (-x, y) on L'M'N'O', which matches the definition of a reflection across the y-axis.

Answer:

The transformation is a reflection across the y-axis (vertical axis of symmetry).