What is the time point 0 in that problem?

Graded discussion week 2;the hamptons home of a famed socialite hits

Time point 0 in the problem is the starting point or beginning of the experiment. It is when all of the initial variables and conditions have been established, and data collection begins. This time point marks an important milestone as it serves as a reference for other measurements taken throughout the course of the experiment. For example, if you are measuring changes in temperature over an hour-long period then time point 0 would be when you take your first reading.