Orientation and Preserve Transformations

Which representation of a transformation on a coordinate grid does not preserve orientation?

• (x,y) → (2x,2y)

• (x,y) → (x+3, y-9)

• (x,y) → (-x,y)

• (x,y) → (⅓x, ⅓y)

Tell whether the two figures are congruent.

• Yes, same size and same shape

• No, same shape but different sizes

• No, different size and different shapes

Describe the translation.

• Translate 3 up and 4 right

• Translate 3 down and 4 left

• Translate down 2

• Translate 1 up and 3 left

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation

• 90^o counter clockwise rotation

• Reflection across the y-axis

• Reflection across the x-axis

Which of the following BEST describes the transformation?

• TRANSLATE 5 units down

• REFLECT over the x-axis

• ROTATE 90 degrees clockwise

• None of these

Which figure is the IMAGE?

• ABC

• A'B'C'

• Not enough information

Describe the reflection.

• Reflect over the x-axis

• Reflect over the y-axis

• Reflect 180 degrees

• Reflect over the origin

Translations, rotations, and reflections are three different types of what?

• Transformations

• Geometry

• Vectors

• Shapes

Are the figures congruent?

(What type of transformation is shown?)

• Congruent (rotation)

• Congruent (reflection)

• NOT Congruent (rotation)

• NOT Congruent (reflection)