Question

A line contains the points (6,−3)
(
6
,
−
3
)
and (3, 1)
(
3
,

1
)
. When this line is reflected across the y
𝑦
-axis, what are the two new points?

Answer 1

Reflecting across the y-axis negates the x-coordinate and leaves y unchanged. So

- (6, −3) → (−6, −3)
- (3, 1) → (−3, 1)