Question

/10

The price of the house decreases from $250,000 in 2005 to
$195,000 in 2010. What is the average rate of change for the
house each year?

Answer 1

The average rate will be -11000 dollars per year.

Explanation:

The price of a house in 2005 = $250,000

The price of a house in 2010 = $195,000

at x₁ = 2005, f(x₁) = 250,000

at x₂ = 2010, f(x₂) = 195,000

Using the formula to determine the average rate of change for the

house each year.

Average rate = [f(x₂) - f(x₁)] / [ x₂ - x₁]

= [195,000 - 250,000 ] / [2010-2005]

= -55000 / 5

= -11000

Therefore, the average rate will be -11000 dollars per year.