To determine which graph shows a rotation of triangle PQR about the origin (0, 0), we need to look for the resulting positions of the points P', Q', and R' after a rotation of the triangle around this point.
When a point (x, y) is rotated counterclockwise around the origin by an angle θ, the new coordinates (x', y') are given by the following formulas:
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For a 90-degree rotation:
- (x', y') = (-y, x)
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For a 180-degree rotation:
- (x', y') = (-x, -y)
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For a 270-degree (or -90-degree) rotation:
- (x', y') = (y, -x)
You will need to compare the original coordinates of points P, Q, R with the coordinates of their respective prime points (P', Q', R') in each graph. Look for the one that matches one of the specified rotation movements.
Since I cannot see the actual graphs (A, B, C) or the coordinates, please use the descriptions above to compare to find out which graph correctly represents a rotation of triangle PQR about the origin.
If you can provide the coordinates of the points or any additional details, I'd be happy to assist further!