Rigid Motion Predict Transformation

What sequence of transformations will map trapezoid A to its image A'?

• Reflection across vertical line, then translation downwards

• Rotation 180 degrees, then reflection over x-axis

• Reflection across x-axis, then translation upwards

• Rotation 180 degrees, then reflection over y-axis

What are the series of rigid motions that would map ∆ABC onto ∆A''B''C''?

• a reflection followed by a rotation

• a reflection followed by a translation

• a translation followed by a rotation

• a translation followed by a reflection

Write a rule for the translation.

•  (x -1, y  + 2)

•  (x -2, y  + 1)

•  (x +2, y  - 1)

• (x +1, y  -  2)

What is the angle of rotation would map the figure onto itself? (Select all that apply)

• 60 degrees

• 120 degrees

• 180 degrees

• 240 Degrees

Reflect triangle ABC across the y-axis:

• A' (-2, 5) B' (3, 1) C' (3, -3)

• A' (2, -5) B' (-3, -1) C' (-3, 3)

• A' (-2, -5) B' (-3, 1) C' (3, 3)

• A' (-2, 5) B' (3, -1) C' (3, -3)

What is the rule for the following reflection? 

• Reflection across       y = 3

• Reflection across        x = −3

• Reflection across            x = 3

• Reflection across          y = −3

Point A is rotated 180 degrees and then flipped over the y-axis. What is A" if A is (2,7)

• (2,7)

• (-2, -7)

• (-2, 7)

• (2, -7)

Determine how to translate triangle A'B'C' from triangle ABC.

• (x+2, y-5)

• (x+2, y-9)

• (x-2, y-9)

• (x-2, y+9)

Which geometric object is best used to define rotations?

• circle

• line

• segment

• degree

What geometric object is best used to describe translations?

• circle

• line

• segment

• degree