16.5 Rotations

Triangle A is rotated 90° clockwise 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)→(-y,x)
• (x,y)→(x,y)

Triangle A is rotated 270° 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)→(-y,x)
• (x,y)→(-x,-y)

Rotate the point (7,8) around the origin 90 degrees. State the image of the point.

• (-7,-8)
• (8,-7)
• (-8,7)
• (8,7)

Rotate the point (-5,8) around the origin 270 degrees. State the image of the point.

• (-8,5)
• (8,-5)
• (8,5)
• (5,-8)

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

The image A'B'C' is a rotation of ABC.

• True
• False

How many degrees was the figure rotated?

• 90 degrees counterclockwise 
• 180 degrees
• 270 counterclockwise 
• 90 degrees clockwise

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

One of the triangles is a rotation of the other.

• True
• False

How many degrees was the figure rotated?

• 90 degrees counterclockwise 
• 180 degrees
• 270 degrees counterc

The new figure created from a transformation is... 

• Congruent 
• Preimage 
• Image 
• Angle 

What is a transformation that turns a figure about a fixed point for a given angle?

• Point of Rotation 
• Vertex 
• Rotations
• Image