# How do you find the inflection points when given a graph?

##### 1 Answer
Apr 1, 2015

Look for points on the graph at which the concavity changes.
(This is a very inaccurate way of doing it and should be reserved for cases in which we have no formula for the function.)

graph{x^3-x^2 [-1.709, 1.709, -0.855, 0.854]}

Clearly there is an inflection point somewhere between $0$ and $\frac{1}{2}$. I find it difficult to be more accurate than that.