# Concavity

Let f be differentiable on an open interval I.

- If f' is increasing on I, then the graph of f concave up on I.
- If f' is decreasing on I, then the graph of f concave down on I.

Let f be differentiable on an open interval I.

- If f' is increasing on I, then the graph of f concave up on I.
- If f' is decreasing on I, then the graph of f concave down on I.

Sub Topics