Mathematics, 18.10.2020 04:01 Dkhaurithompson

Triangle ABC was transformed using the rule (x, y) → (–y, x). The vertices of the triangles are shown. A (–1, 1)
B (1, 1)
C (1, 4) A' (–1, –1)
B' (–1, 1)
C' (–4, 1)
Which best describes the transformation?

The transformation was a 90° rotation about the origin.
The transformation was a 180° rotation about the origin.
The transformation was a 270° rotation about the origin.
The transformation was a 360° rotation about the origin.

Answers: 2

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Triangle ABC was transformed using the rule (x, y) → (–y, x). The vertices of the triangles are show...