Question

The coordinates of point A on a grid are (5, −3). Point A is reflected across the x-axis to obtain point B. The coordinates of point B are (5, ).

Answer 1

The answer is (5,3)

Answer 2

The coordinates of point B are (5, 3).

Explanation:

Given:

The coordinates of point A on a grid is (5, -3).

The point is reflected across the x-axis.

When a point
`A(x,y)` on a grid is reflected across the x-axis, the coordinate rule for the reflected point B is given as:

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

Therefore, the 'y' value changes sign upon reflection across the x-axis.

Here,
`x=5,y=-3`

Hence, the coordinates of point B are (5,-(-3)) = (5, 3)