Math Problem Statement
Solution
The question in the image asks about the coordinates of a point before a 180° rotation using the origin .
Given:
- The point is the image of the original point after being rotated 180° around the origin .
Rotation of 180°:
A 180° rotation around the origin transforms a point to .
Let be the original point before the rotation. After a 180° rotation, this point would become .
From the problem: So:
Thus, the coordinates of the original point before the rotation are .
Would you like further details, or do you have any other questions?
Related Questions:
- What happens to a point after a 90° counterclockwise rotation around the origin?
- How does a 270° clockwise rotation around the origin transform a point ?
- Can you explain how to apply a reflection over the y-axis to a point?
- What is the effect of rotating a point 360° around the origin?
- How would you find the original point if it were rotated 45° instead of 180°?
Tip:
When dealing with transformations like rotations, it helps to visualize the rotation on a coordinate plane or use formulas for standard rotation angles (90°, 180°, 270°).
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Math Problem Analysis
Mathematical Concepts
Geometry
Coordinate Plane
Rotations
Formulas
Rotation by 180°: (x, y) -> (-x, -y)
Theorems
Rotation Theorem for 180° about the origin
Suitable Grade Level
Grades 9-10
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