[dilutedh2o]

I think that is an interpretation of the graph showing sea level rise since 1994, which is on that page.

[jsingleton]

Looking at the graph there it appears the slope from 2010 onwards is steeper than before 2010 but I'd have to look at the raw data to check.

Edit: It's clearer on the second graph below. From 1870 to present it looks very much like an exponential growth curve, particularly the last few decades.

[gus_massa]

The second graph is evidently curved, but it can be fitted quite good by a parabola. Crappy fit: https://imgur.com/a/ViBR21p

Why do you think it is an exponential function?