All High School Math Resources
Example Question #25 : Introductory Calculus
The limit does not exist.
This is a graph of . We know that is undefined; therefore, there is no value for . But as we take a look at the graph, we can see that as approaches 0 from the left, approaches negative infinity.
This can be illustrated by thinking of small negative numbers.
NOTE: Pay attention to one-sided limit specifications, as it is easy to pick the wrong answer choice if you're not careful.
is actually infinity, not negative infinity.