Question

The reflection of the point $(1,2)$ in y - axis is

• A. $(-1,2)$
• B. $(1,-2)$
• C. $(-1,-2)$
• D. None of these

Answer 1

The correct option is A

$(-1,2)$

Since, the reflection of the point is asked in y - axis, the y - coordinate of the point will not change. The point is $1$ unit right of y - axis, so, its image will be $1$ unit left of y - axis. So, the reflection of the given point is $(-1,2)$.