Question

******NEED REAL HELP**********
From 1993 to 2003 the cumulative number
N of AIDS cases in thousands can be approximated by, where corresponds to
the year 1993.N =-2^2 +76x +430, where x=0
corresponds to the year 1993.

Year 1993 -1995- 1997- 1999- 2001 -2003
Cases 422 565 677 762 844 930
(a) Use the equation to find N for each year in the table.
(b) Discuss how well this equation approximates the data.
(c) Rewrite the equation with the right side completely
factored.