# World of Tanslations

1. Five points are plotted on the coordinate plane.Geogebra Applet (Links to an external site.)Links to an external site.   (Links to an external site.)Links to an external site.
• Using the Pen tool or the Text tool, label each with its coordinates.
• Using the xx-axis as the line of reflection, plot the image of each point.
• Label the image of each point using a letter. For example, the image of point AA should be labeled A′A′.
• Label each with its coordinates.
2. If the point (13,10)(13,10) were reflected using the xx-axis as the line of reflection, what would be coordinates of the image? What about (13,-20)(13,-20)? (13,570)(13,570)? Explain how you know.
3. The point RR has coordinates (3,2)(3,2).
• Without graphing, predict the coordinates of the image of point RR if point RR were reflected using the yy-axis as the line of reflection.
• Check your answer by finding the image of RR on the graph. • Label the image of point RR as R′R′.
• What are the coordinates of R′R′?
4. Suppose you reflect a point using the yy-axis as line of reflection. How would you describe its image?