The cost of a 55 inch HDTV is decreasing 15% per year.
What is the multiplier?
If the cost decreased by 15% each year, the newcost would be 85% of the previous year.
If the current cost of the HDTV is $1500, what will it cost in four years?
In one year the cost will be $1500(0.85).
In two years the cost will be [$1500(0.85)](0.85).
Continue this pattern.
If the current cost of the HDTV is $1500, write an equation for the cost in n years.
Use the pattern in part (b) to write your equation.