Voters Graph the function defined by the table in Exercise 1 on the window [1960, 2008] by [60, 100].
Exercise 1
Voters It wasn’t until Harry Truman garnered 77% of the black vote in 1948 that a majority of blacks reported that they considered themselves Democrats. The table gives the percent p of black voters who supported Democratic candidates for president for the years 1960–2008.
a. Is the percent p a function of the year y?
b. Let p = f(y) denote that p is a function of y. Find ƒ(1992) and explain what it means.
c. What is y if f(y) = 94? What does this mean?
Year
Democrat (%)
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
2000
93
7
2004
74
26
2008
95
5
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