Transformations: Review

Which transformation is not a rigid transformation?

• Translation
• Reflection
• Rotation
• Dilation

Level 2: How is triangle ABC being translated to triangle A'B'C'?

• up 3, left 8

• up 9, left 4

• down 3, right 8

• down 9, right 4

Write a rule for the translation.

•  (x -1, y  + 2)
•  (x -2, y  + 1)
•  (x +2, y  - 1)
• (x +1, y  -  2)

If you were to rotate ABCD 90° clockwise about the origin, what would be the coordinate of A'?

• (-5, 3)

• (3, -5)

• (5, -3)

• (-3, -5)

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate 90 degrees counterclockwise around the origin

• Rotate 90 degrees clockwise around the origin and then translate down 8.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up 8 and then rotate 90 degrees counterclockwise about the origin.

Triangle ABC is rotated 180 degrees counterclockwise around the origin. Find the coordinates of B'.

• B' (-4, -4)

• B' (2, -2)

• B' (6, 0)

• B' (5, -1)

Which rule would result in a translation of 2 units left and 3 units up?

• (x, y) → (2x, 3y)
• (x, y) → (x - 2, y + 3)
• (x, y) → (-x, -y)
• (x, y) → (x + 2, y - 3)

Is the picture being reflected in the y-axis or x-axis?

• y-axis
• x-axis

To dilate by 1/2, what can you do?

• Multiply by -1
• Multiply by 2
• divide by 2
• divide by 1/2