I have a graph below where I put my data into an Excel sheet and try to obtain a linear equation for it using the trendline function. The equation that I obtained shows that the y-intercept is -105.09. However, if I really extrapolate the line until it crosses the y-axis, I don't think I will cross at -105.09. This is really weird and I think I overlooked something. Can someone please explain this to me?
