The average monthly bill for wireless telephone subscribers from 1985 to 2008 can be modeled by B(x) = -1.275x+98.208, where x

Question

The average monthly bill for wireless telephone subscribers from 1985 to 2008 can be modeled by B(x) = -1.275x+98.208, where x is the number of years after 1980. If this model remains valid, in what year will the average monthly bill be $48.48? The average monthly wireless phone bill would be $48.48 in the year

Kunduz · Accepted Answer

Click to see the answer