Rotations

What is this picture an example of? 

• An angle
• A cat vertex 
• Rotation 
• Dilation

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

• (-7,-8)
• (8,-7)
• (-8,7)
• (8,7)

If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, 5)
• (-5, 3)
• (-3, 3)

If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, 5)
• (-5, 3)
• (-3, 3)

Triangle A is rotated 90° clockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A

• B

• C

• D

Which rule describes rotating 90° clockwise?

• (x,y)→(y, -x)

• (x,y)→(-x,-y)

• (x,y)→(-y,x)

• (x,y)→(x,y)

Which rule describes rotating 90° counterclockwise?

• (x,y)→(y, -x)

• (x,y)→(x,y)

• (x,y)→(-x,-y)

• (x,y)→(-y,x)

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

• (-7,-8)
• (8,-7)
• (-8,7)
• (8,7)

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

• (-7,-8)
• (8,-7)
• (-8,7)
• (8,7)

What is the image of S (2, -5) after a rotation of 90° clockwise about the origin?

• S' (-5, -2)

• S' (5, -2)

• S' (-2, 5)

• S' (5, 2)