Review Activity: Congruence Transformations 2

Which transformation will map an image onto itself?

• A translation 3 units right and 3 units up

• A rotation 360^o clockwise

• A reflection over the y-axis followed by a translation 3 units down

• A dilation followed by a 90^o clockwise rotation

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CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

What will be the new position of the given point after a reflection across the y-axis?

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CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Which of the following images shows a rotation of 180^o?

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CCSS.8.G.A.1

CCSS.8.G.A.2

Point A is located in the coordinate plane at (-3, 2). If point A is reflected in the line y = -1, what are the new coordinates?

• (-3, 1)

• (-4, 2)

• (5, 2)

• (-3, -4)

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CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Point C is located in the coordinate plane at (1, 4). Reflect point C across the line y = x. What are the coordinates of point C? Make sure your answer is typed as a coordinate pair.

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CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Point R is located at (-1, 4). After undergoing a reflection, Point R is now located at (-1, -4). Complete the following: "Point R was reflected across the..."

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CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Point G is located at (2, -9) in the coordinate plane. It is translated 4 units down and 1 unit left. What are the new coordinates of Point G? Write your answer as a coordinate pair.

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CCSS.8.G.A.1

CCSS.8.G.A.3

What move is demonstrated in the picture?

• Translation

• Reflection

• Rotation

• Dilation

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CCSS.8.G.A.1

CCSS.8.G.A.2

• Translation

• Reflection

• Rotation

• Dilation

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CCSS.8.G.A.1

CCSS.8.G.A.2

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3