Rotations

Question 1

Micaela tried to rotate the square 180° about the origin. Is her rotation correct? If not, explain why.

Revolt · Accepted Answer

No, the vertices of the image and pre-image do not correspond.

Question 2

(-7, -1)(-1, -7)(1, -7)✔ (7, -1)

Revolt · Accepted Answer

✔ (7, -1)

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

A rectangle was rotated 270° about the origin.The image is shown.Which points are vertices of the pre-image? Check all that apply.

Revolt · Accepted Answer

M(3, 2); N(3, 1)

Question 6

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

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

Rotations Answers

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