Results: Transformation Geometry II - Normal

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Question 1: Find the reflection of the triangle

A B C

across the

y = - x

line

Your Answer: $A^{'} (- 1, 1), B^{'} (- 1, 3), C^{'} (- 3, 1)$

Correct Answer:

A^{'} (- 1, - 1), B^{'} (- 1, - 3), C^{'} (- 3, - 1)

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Question 2: Find the reflection of the triangle

A B C

across the

y = - x

line

Your Answer: $A^{'} (2, 1), B^{'} (0, - 4), C^{'} (4, - 2)$

Correct Answer:

A^{'} (- 2, 1), B^{'} (0, - 4), C^{'} (- 4, - 2)

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Question 3: Find the coordinates of the triangle

A B C

enlarged by a scale factor of

3

and centered about the origin

Your answer: $A^{'} (- 6, 0), B^{'} (6, - 3), C^{'} (3, 9)$

You answered correctly

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Question 4: Find the coordinates of the triangle

A B C

enlarged by the scale factor of

\frac{1}{2}

and centered about the origin

Your Answer: $A^{'} (- 4, 0), B^{'} (4, 4), C^{'} (0, 6)$

Correct Answer:

A^{'} (- 2, - 1), B^{'} (2, 1), C^{'} (0, 2)

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Question 5: Find the coordinates of the triangle

A B C

rotated by

90^{\circ}

about the origin

Your Answer: $A^{'} (0, 0), B^{'} (0, - 3), C^{'} (3, 0)$

Correct Answer:

A^{'} (0, 0), B^{'} (0, 3), C^{'} (- 3, 0)

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