To tell:
Whether the given transformation is a rotation about the origin. If so, give the angle and direction of rotation.
Answer to Problem 12.18EP
The given transformation is a rotation of 90 degrees anti-clockwise about the origin.
Explanation of Solution
Given:
A graph:
We know that the rule of rotation about the origin by 90 degrees is
Upon looking at our given image, we can see that the x -coordinates of red
Therefore, the given transformation is a rotation of 90 degrees anti-clockwise about the origin.
Chapter CSR Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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