the cumulative number of car accidents from 2000-2010 can be modeled by the quadratic expression, C=-33x^2+792x+8,877, where x=1corresponds to 2000, x=2 corresponds to 2001, and so on untill x=11 corresponds to 2010

a)find the number of cumulative car accidents in 2005?

b)use the table of variables to estimate the year in which the cumulative number of accidents reached 10,33

1 answer

plug in x=6

solve for x when C=10,33 (?)