Exploring Translations and Reflections in Mathematics

This video tutorial covers the final lesson in unit one, focusing on translations and reflections. It explains the concept of transformations, introduces prime notation, and provides examples of translating and reflecting shapes on a coordinate grid. The video also includes practical exercises for students to practice these concepts.

What is the term used to describe the new shape after a transformation?

• New form

• Image

• Transformed shape

• Prime shape

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CCSS.HSG.CO.A.2

What does the prime notation look like when typed?

• Exclamation mark (!)

• Hash (#)

• At symbol (@)

• Apostrophe (')

What does a transformation in mathematics typically involve?

• Changing a shape's color

• Changing a shape's texture

• Changing a shape's position or orientation

• Changing a shape's size

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CCSS.HSG.CO.A.2

If a point moves from (-8, 4) to the right by 4 units and up by 2 units, what are the new coordinates?

• (-12, 6)

• (-12, 2)

• (-4, 6)

• (-4, 2)

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CCSS.5.G.A.1

What is the result of translating a point to the right on a coordinate grid?

• Increase in the x-coordinate

• Decrease in the y-coordinate

• Increase in the y-coordinate

• Decrease in the x-coordinate

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What happens to the y-coordinate when a point is reflected across the x-axis?

• It remains the same

• It becomes zero

• It is doubled

• It is multiplied by -1

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

After reflecting a point across the x-axis, if the original point was (4, 3), what would be the new point?

• (-3, 4)

• (3, 4)

• (-4, 3)

• (4, -3)

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which line is typically used for practicing reflections in the classroom?

• y-axis

• x-axis

• y = 6

• y = x

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for reflecting a point across the y-axis?

• Both X and Y remain the same

• Both X and Y become negative

• Y becomes negative, X remains the same

• X becomes negative, Y remains the same

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If a point (B) has coordinates (-3, 7) before reflection across the y-axis, what will be the coordinates of B'?

• (3, 7)

• (-3, -7)

• (7, -3)

• (7, 3)

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5