Lesson 18: Transformations

If the dotted figure is the image, the original figure was reflected over the ...

• x-axis
• y-axis

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

What type of transformation is this?

• Rotation

• Reflection

• Translation

• Enlargement

What type of transformation is this?

• Rotation

• Reflection

• Translation

• Enlargement

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

Identify the transformation from ABCD to A'B'C'D'.

• Translation
• Reflection across the y-axis
• Reflection across the x-axis
• 90^o counter clockwise Rotation

Which answer represents a reflection across the x-axis, using the algebraic rule (x,y) --> (x, -y)?

• d
• c
• b
• a

What does a translation do to an image?

• Turns it 90* clockwise
• Mirrors it
• Shrinks it
• Slides it

What transformation is happening to the red triangle to get to the blue triangle?

• Translation
• Rotation
• Reflection
• Dilation

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

• Transformations
• Geometry
• Vectors
• Shapes