SOS Math 800: Unit 7- Rotations

Which ordered pair gives the coordinates of the image of R (- a , b ) if R is rotated clockwise 180°?

( a , - b )

(-5, 2)

(5, -2); 180°

rotation

a change in a shape or object by turning it

counterclockwise

rotating in the opposite direction of the hands on a clock

clockwise

rotating in the same direction as the hands on a clock

(5, 2)

(-2, 5); 90°

Which ordered pair could not be the coordinates for a clockwise rotation of the point W (-3, 4)?

(-4, 3)

(5, -2)

(-5, 2); 180°

(-2, -5)

(-5, 2); 270°

(2, 5)

(-5, 2); 90°

The image of a point is C '(2, 7). A 90° clockwise rotation was performed to get this image. What were the coordinates of the pre-image?

(-7, 2)

The image of a point is B '(-4, 11). A 180° clockwise rotation was performed to get this image. What were the coordinates of the pre-image?

(4, -11)

(-5, -2)

(5, 2); 180°

(-2, 5)

(5, 2); 270°

(2, -5)

(5, 2); 90°