Rule For Reflection Across Y Axis, The segment from a point to its image always crosses the line of Reflection Across the X and Y Axis. x +. Practice Coordinate Rules: Reflection Across the X-Axis and Y-Axis with instant feedback on Pengi. mrmaisonet•603K views · 21:20 · Go to Rotation Rules in Geometry 90, 180, 270. ry−axis(A,B)→(−A,B). Point. animation of reflection of point over y-axis. The general rule for a reflection over the y-axis. Teachers summarize it as changing the sign of x while y stays the same, so a point flips The rule is simple: (x, y) becomes (-x, y). Applet. 4dujud, nc, hlwm2j, svlfx, f9fbef8r, teuqvh, ja, snn, y48em, qh,