Unit G Summary Question #7 Limit Notation for Vertical Asymptotes

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


When writing limit notation for a vertical asymptotes there is a new sign that goes along limit notation a + and a -. Second thing you need to know is that when you graph the equation into your graphing calculator you will see what each point does, as if it goes up or down. For example, if x=2 then your limit notation would look like, as x approaches 2+ f(x) approaches infinity. The answer is infinity if the graph would be going up for 2. Also, the small sign of "+" means it's from the right side. The small sign of "-" means it's coming from the left side. So the example done with 2 means that the 2 from the right approaches infinity because it goes up.