The point that is the reflection of D across the x-axis and the y-axis is point , and the coordinates of this point are . The reflection of point L across x-axis is point , and the coordinates of this point are .

We will discuss here about reflection of a point in the x-axis.

Reflection in the line y = 0 i.e., in the x-axis.

The line y = 0 means the x-axis.

Let P be a point whose coordinates are (x, y).

Let the image of P be P’ in the axis.

Clearly, P’ will be similarly situated on that side of OX which is opposite to P. So, the y-coordinates of P’ will be – y while its x-coordinates will remain same as that of P.

The image of the point (x, y) in the x-axis is the point (x, -y).

Symbolically, Mx (x, y) = (x, -y)

Explanation: