Rotations STAAR Practice

What is the only rule that will flip the order of x and y?

• 180 degree rotation
• 90 degree or 270 degree rotation
• Reflection over the y-axis
• Reflection over the x-axis

What is the only rule that has a negative x AND a negative y?

• 180 degree rotation
• 90 degree or 270 degree rotation
• Reflection over the y-axis
• Reflection over the x-axis

What is the rule for a 270 degree clockwise rotation?

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

What is the rule for a 90 degree counterclockwise rotation?

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

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)

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)

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)

Parallelogram PQRS is rotated 90 degrees clockwise about the origin to create paralellogram P'Q'R'S'. Which rule describes this transformation?

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

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)

An octagon is rotated 180 degrees about the origin to create a new octagon. Which rule describes this transformation?

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