Final answer:
The b)Graphing Calculator Online Chart is the online tool that can be used to create various types of charts and graphs, typically by inputting data and then utilizing regression functions.
Step-by-step explanation:
The online tool used to create charts and graphs can vary, but based on the options provided in the question, the most relevant tool seems to be a graphing calculator. Specifically, the option b)Graphing Calculator Online Chart seems to be the intended answer, as it is capable of plotting various types of graphs and performing regression analyses to find the best-fit line or equation for a set of data. Typically, the process of using such a calculator involves entering data to create a scatter plot and then using the calculator's regression function to obtain the least-squares regression line, which is superimposed on the scatter plot to visualize the relationship between the variables.
While other options such as a tangent line calculator or function table finder have their uses, they are not as broadly focused on creating a variety of charts and graphs as a general online graphing calculator would be.