Discover more at www.ck12.org: http://www.ck12.org/geometry/Dilation-in-the-Coordinate-Plane/.Here you'll learn how to draw dilated figures in the coordinate... Graph a triangle (LMN) and reflect it over the line y=x to create. triangle L'M'N'. Describe the transformation using words. Draw a line segment from point L to the reflecting line, and then draw a line segment from point L' to the reflecting line.