Question

The point P(4, −8) is reflected in the line x = 0 to get the point R. The co-ordinates of point R are ______.

Options

• (4, −8)

• (−4, 8)

• (4, 8)

• (−4, −8)

Answer 1

The point P(4, −8) is reflected in the line x = 0 to get the point R. The co-ordinates of point R are (−4, −8).

Explanation:

Equation of y-axis is x = 0.

We know that,

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

Given,

On reflecting in line x = 0 (or y-axis) point P becomes R.

∴ P(4, −8) = R(−4, −8).