Math Problem Statement
Jika sebuah titik B(−4,1) diputar 90 derajat berlawanan arah jarum jam terhadap titik asal (0, 0), koordinat titik yang baru adalah .
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Rotation Transformations
Coordinate Geometry
Formulas
(x', y') = (-y, x) for 90-degree counterclockwise rotation
Theorems
Rotation theorem for coordinate plane transformations
Suitable Grade Level
Grades 8-10
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