the extrema of a graph are the minimums and maximums of a function.
relative extrema (local)
a polynomial has a relative minimum or relative maximum where it switches between decreasing and increasing (or at an endpoint if the polynomial has a restricted domain).
A) -4 and 0
B) -2 and 3
absolute extrema (global)
of all local maxima, the greatest is called the absolute maximum. the least of all local minima is called the absolute minimum.
A) 2
B) 3
C) None
facts about polynomials
between 2 real zeros of a polynomial, there must be at least one localmaximum or localminimum.
polynomials of even degree must have either a absolutemaximum or a absoluteminimum.
point of inflection
occurs when a function changes from concave up to concave down OR from concave down to concave up.
at a point of inflection, the rate of change of a function changes from increasing to decreasing OR from decreasing to increasing