Question

The coordinates of the reflection of the point P, across the Y-axis are

• A. (-3,-2)
• B. (3,-2)
• C. (-3,2)
• D. (3,2)

Answer 1

The correct option is A (-3,-2)

Examining the graph, we find the following:


The point P is 3 units to the right of the Y-axis.

So, treating the Y-axis as a mirror, we can find the reflection of point P at point R, 3 units to the left of the
Y-axis.


Now, the coordinates of the point R can be found by measuring its distance from the axes.


The point R is 3 units to the left of the Y-axis and 2 units below the X-axis.

Hence, the coordinates of R will be (-3,-2).

Therefore, the coordinates of the reflection of the point P across the Y-axis are: (-3,-2).