It's been hard to come up with a question title that makes sense so please bear with me.
On an exponential curve there's a point on the x axis where the y axis starts increasing significantly. The exact location/ calculation of the point isn't important for my question.
Here's an example:
When people are talking about every day life that involve exponential curves we sometimes use terms like "hit a steep learning curve" to describe our experience of reaching this point.
In calculus we use the term "inflection point" for when a curve changes between positive and negative.
Is there also a term for the above point on the exponential curve?