Practice problem
What are the coordinates of △\bigtriangleup△ABCABCABC rotated 270∘270^{\circ}270∘.
[−1−32−421]\begin{bmatrix}-1&-3&2\\-4&2&1\end{bmatrix}[−1−4−3221]
[13−24−2−1]\begin{bmatrix}1&3&-2\\4&-2&-1\end{bmatrix}[143−2−2−1]
[4−2−1−1−32]\begin{bmatrix}4&-2&-1\\-1&-3&2\end{bmatrix}[4−1−2−3−12]
[−42113−2]\begin{bmatrix}-4&2&1\\1&3&-2\end{bmatrix}[−41231−2]
Type a concept, like “slope” or “photosynthesis”.
