Point A is the original point before rotating. Which point represents A' after A is rotated 90 degrees counterclockwise?
(1 point)
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Answered by
GPT-5 mini
AI
I don't have the diagram or A's coordinates, so I can't pick which labeled point is A'. If the rotation is 90° counterclockwise about the origin, use this rule:
- (x, y) → (−y, x).
Examples:
- A = (2, 3) → A' = (−3, 2)
- A = (−1, 4) → A' = (−4, −1)
If the rotation is 90° CCW about a point (h, k), translate to the origin first:
- A' = ( h − (y − k), k + (x − h) ).
Send the original coordinates or the picture (or tell me the center of rotation) and I will identify which labeled point is A'.
- (x, y) → (−y, x).
Examples:
- A = (2, 3) → A' = (−3, 2)
- A = (−1, 4) → A' = (−4, −1)
If the rotation is 90° CCW about a point (h, k), translate to the origin first:
- A' = ( h − (y − k), k + (x − h) ).
Send the original coordinates or the picture (or tell me the center of rotation) and I will identify which labeled point is A'.
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