Question

Morgan plots the point (4,-7) on a coordinate plane. If she reflects the point aacross the y axis, what are the coordinates of the reflected point?

Answer 1

(-4,-7) 


The x coordinate just becomes a negative

Answer 2

If you imagine a coordinate plane, there are 4 sections.
1 : (+,+)
2 : (-,+)
3 : (-,-)
4: (+,-)

Now, point (4,-7) is in the 4th section. Meaning, the reflection over the y-axis would be in the 3rd section. It would be (-,-)

The reflection over the y-axis of (4,-7) is (-4,-7).

I hope this helps!