The point P(5, 5) is first reflected in line y = 0 and then in x-axis to get the point Q. The co-ordinates of point Q are :

1. (5, 5)

2. (-5, 5)

3. (5, -5)

4. (-5, -5)

Given,

The point P(5, 5) is first reflected in line y = 0 and then in x-axis to get the point Q.

We know that,

Equation of x-axis is y = 0.

Thus, we can say that,

Point P is first reflected in x-axis and then again in x-axis to get point Q.

We know that,

On reflecting in x-axis the sign of y co-ordinate changes.

Let on first reflection in x-axis point P becomes P'.

P(5, 5) = P'(5, -5)

On second reflection in x-axis point P' becomes Q.

P'(5, -5) = Q(5, 5)

Hence, Option 1 is the correct option.