What is the best description of the end behavior of the graph of f(x)=12(13)x+6? f(x)=12(13)x+6?

First, simplify the equation:
f(x)=12(13)x+6
f(x)=156x+6

For this monomial function

As x increases, f(x) constantly increases, therefore the positive end behavior is infinitely positive.

as x decreases and decreases negatively, therefore the negative end behavior is infinitely negative