Given:
The point W(5,-4) is reflected over the x-axis.
To find:
The coordinates of the point W' after the reflection.
Solution:
If a point is reflected across the x-axis, then
[tex](x,y)\to (x,-y)[/tex]
Using this rule of reflection, we get
[tex]W(5,-4)\to W'(5,-(-4))[/tex]
[tex]W(5,-4)\to W'(5,4)[/tex]
The coordinates of the point W' are (5,4). The correct option is C.