Note: Below, use interval notation for
intervals or sets of points on the x-axis.

=
The open interval of increase for is
The open interval of decrease for is
has a local minimum at each point in this set
has a local maximum at each point in this set
=

The open interval of upward concavity for is
The open interval of downward concavity for is
has a point of inflection at each point in this set