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3-97.

On graph paper, plot $ABCD$ if $A(0,3),B(2,5),C(6,3)$, and $D(4,1)$.

1. Rotate $ABCD\ 90°$ clockwise ($↻$) about the origin to form $A'B'C'D'$. Name the coordinates of $B'$.

$(5, −2)$

2. Translate $A'B'C'D'$ up $8$ units and left $7$ units to form $A''B''C''D''$. Name the coordinates of $C''$.

$(−4, 2)$

3. After rotating $ABCD$ $180^\circ$ to form $A'''B'''C'''D'''$, Arah noticed that the image lined up exactly with the original. In this case, about what point was $ABCD$ rotated? How did you locate it?

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