Rotations

Question 1

Examine the rotation. Which best describes point D?

Revolt · Accepted Answer

center of rotation

Question 2

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

Rotations preserve the size, length, shape, and angle measures.; The orientation is not preserved.; Line segments connecting the center of rotation to a point on the pre-image and the corresponding point on the image have equal length.; Line segments connecting corresponding vertices are not parallel.

Question 3

After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(6, 3), B'(–2, 1), and C'(1, 7). What are the coordinates of the vertices of the pre-image?

Revolt · Accepted Answer

A: (3, -6); B: (1, 2); C: (7, -1)

Question 4

(-1, 2)✔ (1, 2)(2, -1)(2, 1)

Revolt · Accepted Answer

✔ (1, 2)

Question 5

(-7, -1)(-1, -7)(1, -7)✔ (7, -1)

Revolt · Accepted Answer

✔ (7, -1)

Rotations Answers

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