The following formula models the number of automobiles, a, in thousands, that washington residents purchased x years after 1980. a = 2 x 2 + 22 x + 322 a=2x2+22x+322 a) write an equation that you can use to determine the first year in which residents purchased approximately 874 thousand cars. b) now solve your equation by factoring and specify the first year in which residents purchased approximately 874 thousand cars.

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.

I’m pretty sure the answer is a