I Need An Example Of This Question Provide An Example That You Researched Online

I need an example of this question provide an example that you researched online, with references, of data you would like to model with a linear equation. Find the slope and the y-intercept of the linear equation which could model the data you provided. State what the slope and y-intercept represent in this example. Lastly, discuss if you feel that this model would work both short term and long term. Note that sometimes a linear model will only be a good predictor for the future for a short term, but not necessarily for a long term?