Answer :

Notice that the graph of g(x) is the graph of f(x) reflected about the origin.

Recall that the graph of a function h(x) reflected about the origin corresponds to the function:

[tex]-h(-x)\text{.}[/tex]

Therefore:

[tex]g(x)=-f(-x)\text{.}[/tex]

Answer:

[tex]g(x)=-f(-x)\text{.}[/tex]