Final Answer:
1. Reflection across the x-axis: [1 0 / 0 -1]
2. Reflection across the y-axis: [-1 0 / 0 1]
3. Reflection across the line y = x: [0 1 / 1 0]
Step-by-step explanation:
Vector reflection operations are achieved through matrix transformations. For a reflection across the x-axis, the matrix is [1 0 / 0 -1], where the first element represents the x-axis reflection, and the second element represents the y-axis reflection. Similarly, for reflection across the y-axis, the matrix is [-1 0 / 0 1]. These matrices are derived from the properties of reflection, where signs are changed to achieve the mirror effect.
When reflecting across the line y = x, the coordinates are swapped. This transformation is represented by the matrix [0 1 / 1 0]. The first column corresponds to the x-axis reflection, and the second column corresponds to the y-axis reflection. This matrix essentially swaps the x and y coordinates, achieving the desired reflection.
In summary, each type of vector reflection has a corresponding matrix that captures the transformation properties. The provided matrices can be used to achieve the specified reflections, ensuring accurate mapping between the mathematical representation and geometric transformation.