Understanding Translations in Geometry

This video tutorial introduces the concept of translations in geometry, highlighting their significance in programming. It covers various transformations, including translations, reflections, rotations, and dilations, explaining which are rigid motions. The tutorial provides detailed rules for performing translations, using examples to illustrate how coordinates change. An interactive Geogebra activity is introduced for practice, and the concept of vector translation is explained. The video aims to help learners understand and apply translation rules effectively.

What is the primary objective of learning translations in geometry?

• To rotate geometric figures

• To reflect geometric figures

• To translate geometric figures and identify translation rules

• To change the size of geometric figures

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CCSS.HSG.CO.A.2

Which of the following transformations is not considered rigid?

• Dilation

• Translation

• Reflection

• Rotation

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

In a translation, what does the prime notation (e.g., A') signify?

• The midpoint of the figure

• The translated figure

• The reflection of the figure

• The original figure

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If a point is translated 5 units to the right and 1 unit up, how do the coordinates change?

• Add 5 to the x-coordinate and add 1 to the y-coordinate

• Subtract 5 from the x-coordinate and subtract 1 from the y-coordinate

• Subtract 5 from the x-coordinate and add 1 to the y-coordinate

• Add 5 to the x-coordinate and subtract 1 from the y-coordinate

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CCSS.8.G.A.3

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What is the result of translating a point 6 units to the left and 4 units up?

• Add 6 to the x-coordinate and add 4 to the y-coordinate

• Subtract 6 from the x-coordinate and subtract 4 from the y-coordinate

• Add 6 to the x-coordinate and subtract 4 from the y-coordinate

• Subtract 6 from the x-coordinate and add 4 to the y-coordinate

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

In a translation, if you move a figure to the left, what operation is performed on the x-coordinate?

• Add a negative number

• Add a positive number

• Subtract a negative number

• Subtract a positive number

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What tool is suggested for practicing translations repeatedly?

• Word

• PowerPoint

• Geogebra

• Excel

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CCSS.HSG.CO.A.2

How do you apply a vector translation to a point with coordinates (x, y)?

• Add the vector to the x-coordinate and subtract from the y-coordinate

• Subtract the vector from both x and y coordinates

• Subtract the vector from the x-coordinate and add to the y-coordinate

• Add the vector to both x and y coordinates

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CCSS.8.G.A.3

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What happens to the y-coordinate when a figure is translated downwards?

• It doubles

• It remains the same

• It decreases

• It increases

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CCSS.8.G.A.3

Which transformation involves changing the size of a figure?

• Rotation

• Reflection

• Dilation

• Translation

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CCSS.8.G.A.3