Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
2. Reflections
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Exercise 1 Page 552

Each vertex must be moved to the opposite side of the line of reflection while maintaining the same distance from the line.

Practice makes perfect
Let's recall that a reflection is a type of transformation that reflects an image by using a line like mirror. This line is called the line of reflection.
Triangle being reflected across a movable line
Here, we are asked to graph â–ł ABC and its image after a reflection in the line x=4. First, let's add the given line of reflection to the graph of â–ł ABC.

To reflect the triangle in the line x=4, each vertex must be moved to the opposite side of the line of reflection while maintaining the same distance from the line.

Finally, we can connect the corresponding segments and obtain the image of â–ł ABC after the reflection in x=4.

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Would you like to learn more about reflections? Do you want to know how different transformations work? If your answer to any of these question was Yes, check out Mathleaks materials related to this topic!