Grade 8 | Unit 1: Rigid Transformations and Congruence | Mid-Unit Assessment (A)

All of these sequences of transformations would return a shape to its original position except?

• Translate 3 units up, then 3 units down.

• Reflect over line p, then reflect over line p again.

• Translate 1 unit to the right, then 4 units to the left, then 3 units to the right.

• Rotate 120 degrees counterclockwise around center C, then rotate 220 degrees counterclockwise around C again.

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8.G.A.1

Select all the sequences of transformations that could take Figure P to Figure Q.

• a single reflection

• a single rotation

• a single translation

• a translation, then a reflection

• a reflection, then a different reflection

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8.G.A.1

In which pair of figures can Figure A be taken to Figure B by a rotation?

• Pair 1

• Pair 2

• Pair 3

• Pair 4

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8.G.A.1

Which transformation takes Figure A to Figure B in Pair 1: a translation, rotation, or reflection?

• translation

• rotation

• reflection

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8.G.A.1

Which transformation takes Figure A to Figure B in Pair 2: a translation, rotation, or reflection?

• translation

• rotation

• reflection

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8.G.A.1

Which transformation takes Figure A to Figure B in Pair 3: a translation, rotation, or reflection?

• translation

• rotation

• reflection

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8.G.A.1

Explain why Figure B is not the image of Figure A after a rotation using center P.

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8.G.A.1.a

8.G.A.1.b

Point A is located at coordinates (-4,3). What are the coordinates of each point? Point B is the image of A after a rotation of 180 degrees using (0,0) as center.

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8.G.A.3

Point A is located at coordinates (-4,3). What are the coordinates of each point? Point C is the image of A after a translation two units to the right, then a reflection using the x-axis.

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8.G.A.3

Point A is located at coordinates (-4,3). What are the coordinates of each point? Point D is the image of A after a reflection using the y-axis, then a translation two units to the right.

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8.G.A.3