CPM Homework Help : INT2 Problem 6-67

$ΔABC$ was reflected across the $x$ -axis, and then that image was rotated $90^\circ$ clockwise about the origin to result in $ΔA'B'C'$ , shown at right. Determine the coordinates of points $A, B,$ and $C$ of the original triangle.

Triangle A prime, B prime, C prime is, graphed. A prime (negative 4, comma negative 2), B prime (negative 2, comma negative 6), and C prime (negative 5, comma negative 4).

Hint:

Perform the transformations opposite and in reverse.
Rotate the given triangle counterclockwise $90^\circ$ and then reflect it across the $x$ -axis.