Final answer:
The Inflection Point Calculator is a tool that can be used to identify the point on a curve where the concavity changes.
Step-by-step explanation:
The tool that can be useful in identifying the point on a curve where the concavity changes is called the Inflection Point Calculator. This calculator can determine the inflection points of a function by finding the values of x where the second derivative changes sign. An inflection point occurs where the concavity of a function changes, from concave up to concave down or vice versa.