contestada

1
Spoints
Which is the image of vertex O after the triangle has been rotated 90 degrees counterclockwise about the origin?
6+
5
3
2
L
2
3
-653 -2.1
s! S6
o
w
s
.67
0 -1.2)

1 Spoints Which is the image of vertex O after the triangle has been rotated 90 degrees counterclockwise about the origin 6 5 3 2 L 2 3 653 21 s S6 o w s 67 0 1 class=

Respuesta :

Answer:

(2, - 1 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ) , thus

O(- 1, - 2 ) → (2, - 1 )

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