Consider the table.

Year y	Democrat p	GOP (%)
1960	68	32
1964	94	6
1968	85	15
1972	87	13
1976	85	15
1980	86	12
1984	89	9
1992	82	11
1996	84	12

Where, p represents the percent of support for Democratic candidates and y represents the year from 1960-1996.

(a)

Yes.

The term p represents the percent a function of the year y.