The value of a house is $165,000 and it loses 4% of its value every year.
a. use the exponential decay formula below to write a function for the home's value, y, after t years.
y=a(1±r)^t
b. now use your formula to find the value of the home after 20 years. round to the nearest dollar.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)