Rotation

What is the Earth's tilt in degrees?

• 25.3 degrees
• 32.5 degrees
• 28.5 degrees
• 23.5 degrees

The spinning of an object on its axis is called______

• orbit
• rotation
• revolution
• tide

Tags

CCSS.8.G.A.1

What is the rule for a 90 degree clockwise rotation?

• (x, y) --> (-y, x)
• (x, y) --> (y, -x)
• (x, y) --> (-x, -y)
• (x, y) --> (y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for a 180 degree clockwise rotation?

• (x, y) --> (-y, x)
• (x, y) --> (y, -x)
• (x, y) --> (-x, -y)
• (x, y) --> (y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the rule for a 180 degree counterclockwise rotation?

• (x, y) --> (-y, x)
• (x, y) --> (y, -x)
• (x, y) --> (-x, -y)
• (x, y) --> (y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle ABC is rotated 90 degrees counterclockwise about the origin to create triangle A'B'C'. Which rule describes this transformation?

• (x, y) --> (-y, x)
• (x, y) --> (y, -x)
• (x, y) --> (-x, y)
• (x, y) --> (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotation Rules (clockwise):

90^o rotation: (x, y)→(y, -x)

What are the coordinates for A' after a 90^⁰ rotation clockwise?

• (1, 3)

• (3, 1)

• (3, -1)

• (1, -3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Does the image show a rotation? If so, what is the angle of rotation?

• 90° counterclockwise

• 180° counterclockwise

• 270° counterclockwise

• Not a rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• True
• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• A
• B
• C
• D

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5