Rigid Transformations - Reflections

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

Describe the reflection.

• Reflect over the x-axis

• Reflect over the y-axis

• Reflect 180 degrees

• Reflect over the origin

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d

Are the figures congruent?

(What type of transformation is shown?)

• Congruent (rotation)

• Congruent (reflection)

• NOT Congruent (rotation)

• NOT Congruent (reflection)

What is the algebraic representation that describes this reflection?

• ( x , y )--> ( x , -y )

• ( x , y )--> ( -x , y )

• ( x , y )--> ( y , -x )

• ( x , y )--> ( -y , x )

Which transformation is shown?

• Reflection

• Rotation

• Translation

Reflections over the x-axis change the sign of the ____-__________. 

• y-coordinate

• x-coordinate

• y-axis

• x-axis 

Which transformation is shown?

• Translation

• Rotation

• Reflection

Reflections over the x-axis change the sign of the ____-__________.

• y-coordinate

• x-coordinate

• y-axis

• x-axis 

What Transformation is visible?

• Reflection

• Rotation

• Dilation

• Translation