Geometry Chapter on Transformations

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

What is the rule for the dilation pictured below?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x , 2y)

• (x, y) → (2x, 3y)

Which rule would dilate shows a scale factor of 4

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

Translations, reflections and rotations are all known as ________________________.

• Geometry

• Transformations

• Congruent

Name the transformation.

• Translation

• Reflection

• Rotation

Translation are always _______

• Congruent

• Bigger

• Smaller

• Rotated

The result of a transformation.

• Pre-image

• Image

A transformation that “turns” a figure about a fixed point at a given angle and a given direction.

• rotation

• translation

• reflection

• dilation

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

• y-coordinate

• x-coordinate

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

• y-axis

• x-axis