Polynomials, Higher Order

The function y = pd(x), a polynomial of degree d, is graphed for degrees 3 up to 8.


Compare the degree to the number of roots and to the total number of maxima and minima.

( The graphs show the Chebyshev Polynomials of the Second Kind. They can be written in the interesting form
Un(x) = sin( (n+1) cos-1(x))
sin(cos-1(x))
and have been studied extensively. )