Visually, I know what a point of inflection is, but I don't really know how to define it or how it relates to the second derivative. how does it?
but what you said rings a bell. so the second derivative is 6x -2. set equal to zero you get x = 1/3. so is that the x coordinate? if i wanted to...
Homework Statement
find the x-coordinate(s) of the point(s) of inflection of the function f(x) = x^3 - x^2 - x +1. Give valid reasons for your answer(s).
Homework Equations
The Attempt at a Solution
I don't quite know where to start. Do I somehow put them in my calculator?