Question

the cumulative number of car accidents from 2000 to 2010 can be modeled by the quadratic expression
C=-30x^2+1140x+9,450,where x=1 corresponds to 2000,x=2 corresponds to 2001,and so on until x=11 corresponds 2010
(a) use a table of car accidents in 2003 is
(b) use a table of value to estimate the year in which the cumulative number of car accidents reached 12,600.
the number of car accidents reached 12,600 in about the year