Consider the following data:

Year	Number of Abortions (thousands)
1970	193.4
1975	854.9
1980	1297.6
1985	1328.6
1990	1429.2
1995	1210.8
1998	884.3
2000	857.5
2002	854.1

(a)

Create a quadratic function that models the data.

Let y be the number of abortions in thousands and x be the number of years from 1970.

That is x = 0 for 1970, x = 5 for 1975, x = 10 for 1980 and so on.

So the table becomes,

x	y
0	193.4
5	854.9
10	1297.6
15	1328.6
20	1429.2
25	1210.8
28	884.3
30	857.5
32	854.1