The data would fit a linear model. However, the data fits an exponential model better .
A linear model would best fit a plot whose data takes a straight line trend rather than a curve. From the graph of the data obtained , the first data point at the bottom doesn't perfectly align with the straight pattern of the other data points.
This means that while the data fits a linear model, an exponential model would fit the data better.
A graphical example of an exponential model is also attached .