A computer manufacturer built a new facility for assembling computers. There were construction and new equipment costs. The company paid for these costs and made combined profits of $40 million after 4 years, as shown in the graph: A) f(x) = −30x + 80 B)f(x) = −40x + 4 C) f(x) = 40x − 4 D) f(x) = 30x − 80