Which of the functions are polynomial functions? (Select all that apply.) > > S 13 33 J U C P e 2 y=xº=1 (a) n=0 y=r³² (d) n=3 N x X 2- 1+ (b) n=1 y=x y=x²¹=1/x (e) n=-1 X N (c) n=2 y=x² (f) n-1/2 2 y=x½/2 x

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