Question

Point A is located at (-3, -6) and is reflected in the y-axis. What is the location of Point A'?

(3, -6)
(-3, 6)
(-6, -3)
(3, 6)

Answer 1

(3, -6)

Explanation:

The formula for reflecting across the Y axis is that the X axis value will become opposite, so the -3 becomes positive 3.

Answer 2

(3, -6)

Explanation:

When you reflect a point (x, y) in the y-axis, the y-coordinate remains the same, but the x-coordinate gets the opposite sign. Thus,

(-3, -6)⟶ (3, -6)

The image below shows the point before and after the reflection.