## How do you find concavity?

Concavity, Inflection Points and Second Derivatives –

## How do you find the change in concavity?

How to Find When the Direction of Concavity Changes –

## Why does the second derivative determine concavity?

The sign of the second derivative gives us information about its concavity. If the second derivative of a function f(x) is defined on an interval (a,b) and f ”(x) > 0 on this interval, then the derivative of the derivative is positive. Thus the derivative is increasing! In other words, the graph of f is concave up.

## How do you find the concavity of a graph?

Screencast 1.6.3: Determining concavity from a graph –

## How do you find where a function is increasing or decreasing?

Increasing and Decreasing Functions – Calculus –