A car was valued at $36,000 in the year 1990.

Question

The value depreciated to $15,000 by the year 2007. A) What was the annual rate of change between 1990 and 2007?  =  Round the rate of decrease to 4 decimal places.B) What is the correct answer to part A written in percentage form? =  %.C) Assume that the car value continues to drop by the same percentage. What will the value be in the year 2011 ?value = $   Round to the nearest 50 dollars.

Answer 1

depreciated 21k in 17 years, so the slope is -21000/17 = -1235.29411..... - 123529.411...%

the linear model is y = (-21000/17) (x-1990) + 36000 where x is the year beginning with 1990

x=2011 ---> 10058.82