Answer:
We conclude that If a function has a vertical asymptote at a certain x-value, then the function is undefined at the value.
Explanation:
If a function has a vertical asymptote at a certain x-value, then the function is undefined at the value.
For example, let the function
![f\left(x\right)\:=(x+3)/(x-3)](https://img.qammunity.org/2022/formulas/mathematics/high-school/sv20pmy833m25ddlmkipp58q4c0od74dkj.png)
It is clear that the given function becomes undefined at x = 3 in the denominator.
i.e. 3-3 = 0
It means, the function can not have x = 3, otherwise, the function will become undefined.
In other words, if the function has a vertical asymptote at x = 3, then the function is undefined at the value.
Therefore, we conclude that If a function has a vertical asymptote at a certain x-value, then the function is undefined at the value.