Hi. I have a problem which I think should be pretty easy to solve, but I'm not sure how to go about solving it. If, when x = 1990, y = 25,165,824 when x = 2000, y = 393,216 and when x = 2010, y = 12,288 what is the value of x when y = 0? I want to say this is an example of exponential decay, but I haven't solved a problem like this in quite a while, and I'm just not sure. Thanks for the help,
Also, if this is the wrong section or title, please feel free to change it, or inform me and I will change it (if I can).