After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(5, 3), B'(–2, 1), and C'(1, 7). What are the coordinates of the vertices of the pre-image?

A –

B –

C –

After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(5, 3), B'(–2, 1), and C'(1, 7). What are the coordinates of the vertices of the pre-image?

A –

B –

C –

coordinatesof theverticesof thepreimagesareA ( 3, 5) , B ( 1, 2)andC ( 7, -1)## How to determine the coordinates

coordinatesof theverticesof thepreimagesareA ( 3, 5) , B ( 1, 2)andC ( 7, -1)transformationhere: