Study Guide and Intervention (continued) - MathnMind
Study Guide and Intervention (continued) - MathnMind
Study Guide and Intervention (continued) - MathnMind
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4-2<br />
NAME ______________________________________________ DATE ____________ PERIOD _____<br />
<strong>Study</strong> <strong>Guide</strong> <strong>and</strong> <strong>Intervention</strong><br />
Transformations on the Coordinate Plane<br />
Transform Figures Transformations are movements of geometric figures. The<br />
preimage is the position of the figure before the transformation, <strong>and</strong> the image is the<br />
position of the figure after the transformation.<br />
Reflection A figure is flipped over a line.<br />
Translation A figure is slid horizontally, vertically, or both.<br />
Dilation A figure is enlarged or reduced.<br />
Rotation A figure is turned around a point.<br />
Example<br />
Determine whether each transformation is a reflection, translation,<br />
dilation, or rotation.<br />
a. The figure has been flipped over a line, so this is a reflection.<br />
b. The figure has been turned around a point, so this is a rotation.<br />
c. The figure has been reduced in size, so this is a dilation.<br />
d. The figure has been shifted horizontally to the right, so this is a<br />
translation.<br />
Exercises<br />
Determine whether each transformation is a reflection, translation, dilation, or<br />
rotation.<br />
1. 2.<br />
3. 4.<br />
5. 6.<br />
© Glencoe/McGraw-Hill 219 Glencoe Algebra 1<br />
Lesson 4-2
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