When a figure is rotated 90^(∘) counterclockwise about the origin, the coordinates of the image's vertices will change in the following way.
(a,b) → (- b,a)
Using this rule and the vertices of the polygon, we can find the x- and y-coordinates of the image's vertices.
â–³ ABC
(a,b)
(- b,a)
A
(- 3,2)
(-2,-3)
B
(2,4)
(- 4,2)
C
(3,1)
(- 1,3)
Knowing the vertices of â–³ A'B'C', we can draw the image.
