Math Problem Statement
A(6,0) first <-3,3> then reflect over y axis last rotate the given point 90 degrees about P(1,-2)
Solution
Let's solve this step by step.
1. Apply the translation:
The first transformation is a translation by the vector .
The point will be moved as follows:
After the translation, the new point is .
2. Reflect over the y-axis:
Next, reflect the point over the y-axis.
When reflecting a point over the y-axis, the -coordinate changes sign while the -coordinate remains the same:
After the reflection, the point is .
3. Rotate 90 degrees counterclockwise about :
Finally, we need to rotate the point 90 degrees counterclockwise around .
To rotate a point around another point by 90 degrees counterclockwise:
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Translate the point so that becomes the origin: For : So, the translated point is .
-
Perform the 90-degree rotation counterclockwise: So, .
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Translate the point back to the original position of : Therefore, the final point is .
Final Answer:
After performing all the transformations, the final position of the point is .
Would you like any further clarifications on these steps?
Here are 5 related questions to extend your understanding:
- What happens if the reflection is done over the x-axis instead of the y-axis?
- How would the rotation change if it was done clockwise instead of counterclockwise?
- What is the general formula for rotating any point around an arbitrary point by 180 degrees?
- How would the translation change if the vector was instead?
- How do you rotate a point about the origin by an angle that is not 90 degrees?
Tip: When reflecting points over the x-axis or y-axis, only one coordinate changes sign!
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Math Problem Analysis
Mathematical Concepts
Geometry
Transformations
Translation
Reflection
Rotation
Formulas
Translation: (x, y) + (dx, dy) = (x + dx, y + dy)
Reflection over y-axis: (x, y) -> (-x, y)
Rotation 90 degrees counterclockwise: (x', y') -> (-y', x') around a point (x_p, y_p)
Theorems
Transformation Theorems
Coordinate Geometry
Rotation Theorem
Suitable Grade Level
Grades 9-11
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