3-1 Rigid Motions: Reflections, Translations, and Rotations

3-1 Rigid Motions: Reflections, Translations, and Rotations

Assessment

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Mathematics

9th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a figure over a line, creating a mirror image.

2.

FLASHCARD QUESTION

Front

Define translation in the context of rigid motions.

Back

Translation is a transformation that moves every point of a figure the same distance in a specified direction.

3.

FLASHCARD QUESTION

Front

What does a 90-degree rotation counterclockwise mean?

Back

A 90-degree rotation counterclockwise means turning a figure 90 degrees around a fixed point in the opposite direction of a clock's hands.

4.

FLASHCARD QUESTION

Front

How do you translate a point (x, y) 5 units left and 1 unit up?

Back

The new coordinates will be (x-5, y+1).

5.

FLASHCARD QUESTION

Front

What is the result of translating point (2, 3) left 2 units and up 4 units?

Back

The new coordinates will be (0, 7).

6.

FLASHCARD QUESTION

Front

Describe the transformation (x, y) -> (x-2, y+7).

Back

This transformation translates the point 2 units to the left and 7 units up.

7.

FLASHCARD QUESTION

Front

What is the rule for translating a point 3 units to the right and 2 units down?

Back

The rule is (x, y) -> (x+3, y-2).

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