5gesf(0Which function represents g(x), a reflection of f(x) = {(3) across the y-axis?432-212O g(x) = 2(3)*O g(x) == (3O g(x) = {(3)*X5O g(x) = 2(3)-5

Given
[tex]f(x)=\frac{1}{2}\left(3\right)^x[/tex]Find
Which function represents the g(x)?
Explanation
As we know , the reflection of the point (a,b) across the y-axis is the point (-)