Question

Point D ( −1, 5 ) is reflected across the X-Axis.

Which statements about D′ are true?
Select each correct answer.


The X-Coordinate is 1.
The Y-Coordinate is 5.
The Y-Coordinate is −5.
The X-Coordinate is −1.

Answer 1

The X- Coordinate is -1
The Y- Coordinate is -5

Answer 2

The correct options are 3 and 4.

Explanation:

Given information: Point D ( −1, 5 ) is reflected across the x-axis.

If a point reflected across x-axis, then

`(x,y)\rightarrow (x,-y)`

The coordinate of point D are (-1,5).

The coordinates of point D after reflection across x-axis are

`D(-1,5)\rightarrow D'(-1,-5)`

The x-coordinate of D' = -1

The y-coordinate of D' = -5

Therefore the correct options are 3 and 4.