Where does the graph of #y=(5x^4)-(x^5)# have an inflection point?
1 Answer
May 5, 2015
An inflection point is a point on the graph at which the concavity changes. To investigate concavity, we'll look at the sign of the second derivative:
Obviously
Which is positive for
An inflection point is a point on the graph, so we need:
when
The point