The point (5, k) after reflection in x-axis becomes (5, -8). The value of k is.

1. 8

2. -8

3. 6

4. none of these

The point (-k, -6) after reflection in y-axis becomes (-4, -6), the value of k is:

1. -4

2. 4

3. 8

4. none of these

The point (7, -6) is rotated about origin by 180° in the clockwise direction. The resulting point is:

1. (-7, -6)

2. (7, 6)

3. (-7, 6)

4. (0, -6)

The point (-3, 2) is rotated about origin by 90° in the anticlockwise direction. The resulting point is:

1. (2, 3)

2. (2, -3)

3. (-2, -3)

4. (3, 2)