I think you are thinking of the term discontinuities? Inflection points are notoriously not easily visible in graphs. Here’s an inflection point for example: ht

I think you are thinking of the term discontinuities? Inflection points are notoriously not easily visible in graphs. Here’s an inflection point for example: https://www.calculushowto.com/inflection-point/ https://www.calculushowto.com/inflection-point/