Respuesta :

Answer:

D

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

a point (x, y ) → (y, - x ), thus

C(1, 2 ) → C'(2, - 1 ) → D

Answer:

option D

Step-by-step explanation:

C (1, 2) is rotated 90° clockwise

When (x,y) is rotated 90 degree clockwise then

(x,y) becomes (y,-x)

Interchange the value of x and y and multiply the x value by negative sign

C (1, 2) becomes (2,-1) that is C'

So ,  C (1, 2) is rotated 90° clockwise is C' (2,-1)