Read the Math Notes box in this lesson and then answer the following questions. The cost of a large flat-screen television is decreasing 20% per year.
What is the multiplier?
Subtract the percent from
-inch flat-screen now costs , what will it cost in three years?
The equation for an exponential function is:
initial value multiplier # of years
Using the same rate, what did it cost two years ago?
Use the same equation as (b) and do not change the multiplier.
Write the equation of a function to model this situation.