Problem of the Day

Chapter 13, Lesson 11

When using graph paper to plan a fabric design, Keisha drew the rectangle LMNP with vertices at L(3, 8), M(7, 8), N(7,—2), and P(3, —2). Then she reflected LMNP across the line x = 9 to form the image rectangle L'M'N'P' . What are the coordinates of the vertices of the image rectangle?