rotations

How many degrees was the figure rotated?

• 90 degrees counterclockwise

• 180 degrees

• 90 degrees clockwise

• This is not a rotation, its a translation

How many degrees was the figure rotated?

• 90 degrees counterclockwise

• 180 degrees

• 90 degrees clockwise

• This is not a rotation

A triangle is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes rotating 270° counterclockwise?

• (x, y)→(y, -x)

• (x, y)→(x, y)

• (x, y)→(-y, x)

• (x, y)→(-x, -y)

Rotate the point (-5,1) around the origin 270 degrees counterclockwise. State the image of the point.

• (-1, 5)

• (1, -5)

• (1, 5)

• (5, -1)

Rotate the point (5, 5) around the origin 180 degrees counterclockwise. State the image of the point.

• (5, -5)

• (5, 5)

• (-5, 5)

• (-5, -5)

What is the angle of rotation for this counterclockwise rotation about the origin?

• 90°
• 180°
• 270°
• 360°

Which rule describes rotating 180° clockwise?

• ( x, y ) → ( y, -x )

• ( x, y ) → ( -x, -y )

• ( x, y) → ( x, y )

• ( x, y ) → ( -y, x )

Describe the given rotation.

Select ALL that apply.

• 90° counterclockwise

• 180° clockwise

• 90° clockwise

• 270° clockwise

• 270° counterclockwise

Which rule describes rotating 90° clockwise?

• ( x, y ) → ( y, -x )

• ( x, y ) → ( -x, -y )

• ( x, y) → ( x, y )

• ( x, y ) → ( -y, x )

What is another word for rotation?

• Turn

• Flip

• Slide

• Shrink