Math Problem Statement
What is the image point of left parenthesis, minus, 3, comma, minus, 2, right parenthesis(−3,−2) after the transformation r, start subscript, x-axis, end subscript, circle, R, start subscript, 270, degrees, end subscriptr x-axis ∘R 270 ∘
Solution
To solve the transformation of the point under the combined transformations of reflection across the -axis and a rotation of counterclockwise , we need to break down the process into two steps:
-
Reflection across the -axis: The reflection across the -axis transforms a point to .
- For the point , after reflecting across the -axis:
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Rotation by counterclockwise: A counterclockwise rotation transforms a point to .
- Applying this rotation to the point (the result of the reflection):
Thus, the image of the point after the combined transformation is (2, 3).
Would you like further details on this process?
Here are 5 related questions to deepen your understanding:
- How does a rotation of counterclockwise differ from ?
- What is the general formula for reflecting a point across the -axis?
- What happens when a point is rotated counterclockwise?
- How does the combination of transformations affect the overall result?
- What would the point be after only applying the reflection without the rotation?
Tip: Always apply transformations in the correct order, as reversing them can yield different results.
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Math Problem Analysis
Mathematical Concepts
Coordinate Geometry
Transformations
Reflection
Rotation
Formulas
Reflection across the x-axis: (x, y) → (x, -y)
Rotation by 270° counterclockwise: (x, y) → (y, -x)
Theorems
Reflection Theorem
Rotation Theorem
Suitable Grade Level
Grades 8-10
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