Unit G #7: Limit Notation of Vertical Asymptote

7.  Describe how to write limit notation for vertical asymptotes and what the notation means.

The limit notation of vertical asymptote is as x --> ___+, f(x) --> ___; as x --> ___-, f(x) --> ___.  The notation as read "as x approaches some number on the right hand side, it's either going up (positive infinity) or down (negative infinity); as x approaches some number on the left hand side, it's either going up or down.  The notation is telling us whether the graph goes up or down on both sides of the vertical asymptote(s).