1. Visualization and interpretation of the limit

2. The limit is at a from the left
The limit is at a from the left. The values of x approach a from the left. i.e. the values of x increase to a
The values of f (x) increase without bound
We present next, a possible graph of a function with this limit.

3. f (x) increases without bound as

4. This limit indicates that the line x = a is a vertical asymptote in the positive direction

5. An interpretation of this limit
If p is the area contaminated by toxic waste and C is the cost of cleaning the area p, then the limit
is interpreted as

6. The cost of cleaning the toxic waste increases without bound
as the area p increases to L
When that area reaches L the cost of cleaning it becomes unaffordable