1. **Problem Statement:**
We have a triangle in the lower-left quadrant with vertices approximately at $(-1,-1)$, $(-5,-5)$, and $(-5,-1)$. We want to find the image of this triangle after a 90° clockwise rotation about the origin.
2. **Rotation Formula:**
A 90° clockwise rotation about the origin transforms any point $(x,y)$ to $(y,-x)$.
3. **Apply the rotation to each vertex:**
- For $(-1,-1)$: $$(-1,-1) \to (-1,1)$$
- For $(-5,-5)$: $$(-5,-5) \to (-5,5)$$
- For $(-5,-1)$: $$(-5,-1) \to (-1,5)$$
4. **New vertices:**
The rotated triangle has vertices at $(-1,1)$, $(-5,5)$, and $(-1,5)$.
5. **Location of the rotated triangle:**
These points lie in the upper-left quadrant.
6. **Match with options:**
Looking at the options, the triangle in the upper-left quadrant with vertices near $(-5,3)$ and $(-1,5)$ corresponds to option C.
**Final answer:** The correct choice is **C**.
This is because the rotation formula $(x,y) \to (y,-x)$ moves the triangle from the lower-left quadrant to the upper-left quadrant, matching option C's position and shape.
Triangle Rotation 58B4C8
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