Transformations Rotations Notes

Quadrilateral ABCD is shown on the coordinate grid. Mrs. Berger will rotate the figure 90 degrees counter-clockwise to create quadrilateral A’B’C’D’. Which ordered rule describes this transformation?

• (x, y) → (y,-x)

• (x, y) → (-y, x)

• (x, y) → (-y,-x)

• (x, y) → (x-6, y)

Which rule best describes this transformation?

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

• (x, y) → (-x, y)

• (x, y) → (y, -x)

Identify the rule after a 180° CLOCKWISE or COUNTER CLOCKWISE
(x, y) ---> ___________

• ( -x, -y)

• ( -y, x)

• ( -x, y)

• (y, -x)

At what angle is PQRS rotated to form P'Q'R'S?

• 90⁰ clockwise

• 90⁰ counter-clockwise

• 270⁰ clockwise

• 180⁰ counter-clockwise

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 90 degrees clockwise

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)

The rule for rotation of 180 degrees is  
(x, y) --> _

• (-y, x)

• (-x, -y)

• (y, -x)

• (-y, -x)

Which of the following images show a rotation of 270⁰ counter-clockwise?

• 
• 
• 
• None of the above

Which figure is the IMAGE?

• ABC

• A'B'C'

• Not enough information

Which of the following BEST describes the transformation?

• TRANSLATE 5 units down

• REFLECT over the x-axis

• ROTATE 90 degrees clockwise

• None of these