Answer:
[tex]$ g(x) = -x $[/tex]
Step-by-step explanation:
The reflection of a function [tex]$ f(x) $[/tex] along the [tex]$ x - axis $[/tex] is given by [tex]$ g(x) = -f(x) $[/tex].
Here the given function is [tex]$ f(x) = x $[/tex]. Therefore the reflection would be [tex]$ g(x) = -x $[/tex].
To find reflection draw the graph of it and think about how the graph of its mirror image would be. You would arrive at the reflection function.
