Some simple reflections can be performed easily in the coordinate plane using the general rules below. The fixed line is called the line of reflection. The graph of f(x) x in a straight line passing through the origin (0,0) and at an angle of 45 degrees to the x axis. When reflecting a figure in a line or in a point, the image is congruent to the preimage.Ī reflection maps every point of a figure to an image across a fixed line. A three dimensional Cartesian coordinate system, with origin O and axis lines X, Y and Z, oriented as shown by the arrows. Since the y y coordinates are associated with the vertical axis, this is. In geometry, a reflection is a type of transformation in which a shape or geometric figure is mirrored across a line or plane. Figures may be reflected in a point, a line, or a plane. Reflection over the x x -axis is a vertical reflection (the image will be directly above or below the original).
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