Naming Transformations Geometry

Triangle C is rotated 180° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes this transformation?

• (x,y)→(y, -x) 
• (x,y)→(-x,-y)
• (x,y)→(x,y)
• (x,y)→(-y,x)

After being transformed the new point is called a(n):

• Pre-Image
• Post Image
• Alternate Image
• Image

The point that is to be transformed is called the:

• Pre-Image
• Image
• Post-Image
• Triangle

A scale factor of less than one means

• that the prime image will be larger than the pre-image.
• That the prime image will be the same as the preimage.
• That you need to subtract that amount off  of each side.
• That the prime image will be a reduction of the preimage.

Scale Factor means which of the following: 

• The scale one uses to measure the distance from zero. 
• The factor that shows by how much the prime image is scaled up or down. 
• The number that you add to the coordinates of the pre-image to find the coordinates of the prime image. 
• All of the above

• a
• b
• c
• d

• a
• b
• c
• d

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

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

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

• (x+8, y+4)
• (x-8, y-4)
• (x+4, y+8)
• (x-4, y-8)

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