Math Problem Statement
Solution
To solve the problem of rotating the point 90 degrees counterclockwise around the origin , we can use the following rotation formula for a 90° counterclockwise rotation:
Given the point :
- The -coordinate is and the -coordinate is .
- After applying the formula:
- The new -coordinate becomes ,
- The new -coordinate becomes .
Thus, the rotated point is .
The correct answer is C: (3, -2).
Would you like further details or have any questions?
Here are 5 related questions to expand on this concept:
- What is the formula for rotating a point 180 degrees about the origin?
- How would the coordinates change if the point was rotated 90 degrees clockwise instead?
- Can you describe how rotation transformations preserve distances and angles?
- How can you use matrices to represent and compute rotations?
- What happens to a point if it's rotated by 360 degrees?
Tip: When rotating a point, the sign changes based on the direction and angle of rotation. Understanding the formula helps to predict these changes accurately.
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Math Problem Analysis
Mathematical Concepts
Coordinate Geometry
Rotations
Formulas
(x', y') = (-y, x)
Theorems
Rotation theorem
Suitable Grade Level
Grades 8-10
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